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Should You Be Drinking Coffee Before Power Naps?

Should You Be Drinking Coffee Before Power Naps?



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Vox presents evidence supporting so-called “coffee naps”

A “coffee nap” involves drinking coffee and napping immediately after for 20 minutes.

Though drinking a cup of joe and then taking a nap might seem counterintuitive, Vox says you might want to reconsider this combination. In a video titled ‘Scientists agree: Coffee naps are better than coffee or naps alone,’ Vox asserts that this coffee and nap combination is more effective than napping or drinking coffee alone, citing a Japanese study in which subjects that took a 15-minute coffee nap made fewer errors in a driving simulator than they did with just drinking coffee or only taking a nap.

Vox explains that the buildup of adenosine is what makes us feel tired, and that caffeine blocks adenosine and sleep naturally clears out adenosine. Therefore, combining the effects of the two can feasibly support the idea of coffee naps. Additionally, as caffeine takes 20 minutes before it affects your brain, the ‘coffee nap’ takes advantage of this time by sleeping.

The timing on the 20 minute nap is key, as anything longer might cause sleep inertia or grogginess.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.


'Coffee Naps' Just Might Change Your Life. Here's Why

Having caffeine just before a short snooze is the ultimate energy hack.

The words "coffee" and "nap" don&apost usually go together. But a strategy that pairs the two actually makes sense𠅊nd could be the energy boost you need to make it through a crazy day.

A coffee nap is exactly what it sounds like: You drink a cup of joe, then immediately take a snooze. While this may seem counterintuitive, the caffeine in coffee doesn’t kick in for about 30 minutes, so dozing off just after you drink your java is very possible. And that short sleep will provide its own energy punch: Power naps have been shown to improve alertness and performance.

The ideal coffee nap is 30 minutes long, which means you&aposre waking up just as the caffeine starts to work its magic. The result: You feel both rested and stimulated.

For more energy-boosting tips, sign up for the Health newsletter.

There have actually been a few small studies that support the concept. Research published back in 1997 in the journal Psychophysiology, for example, found that sleepy adults who combined 200 mg of caffeine (twice the amount in 8 ounces of brewed coffee) and then took a nap performed better on a simulated driving test compared to people who only got the caffeine or a placebo.

Another study published in Clinical Neurophysiology in 2003 divided 10 young adults into five experimental groups, each of which tried a different intervention in the middle of computer tasks. One group took a 20-minute nap. Another had 200 mg of caffeine plus a nap. Other participants took a nap and then washed their faces, or were exposed to bright light immediately after waking. And a fifth group simply rested. The most effective performance-boosting strategy? You guessed it: caffeine plus nap.

So, should you become a coffee napper?

I think it’s worth a try if you already drink coffee and your schedule allows. Coffee naps might also prevent you from loading up on excessive amounts caffeine throughout the day, which could make it harder to fall asleep at night.

But there are a few caveats. If you have irritable bowel syndrome or a sensitive stomach, you may want to try green tea instead, or skip caffeine completely. Coffee can cause some digestive upset, which would cancel out the perks of a supercharged nap. And if you&aposre extra sensitive to stimulants—meaning caffeine causes you to feel jittery, nervous, or gives you a racing heart—this strategy isn&apost right for you.

Finally, don’t try a coffee nap late in the day. The general rule of thumb is to avoid caffeine at least six hours before your normal bedtime, so it doesn&apost keep you awake at night. And remember: Coffee naps involve a cup of coffee, not a pot𠅊nd a 15-30 minute nap, not a two-hour siesta.

Cynthia Sass isHealth’s contributing nutrition editor, aNew York Times best-selling author, and a consultant for the New York Yankees.