Sleep inertia - Deepstash
Sleep inertia

Sleep inertia

It is the state of impaired cognition, grogginess, and disorientation commonly experienced on awakening from sleep.

This is why most experts suggest avoiding naps between 40 and 60 minutes in length. 

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Basic categories of nap
  • The Preparatory Nap: This is the planned nap. The responsible nap.
  • The Habitual Nap: You make time for it regularly. It's a habit and it's scheduled.
  • The Emergency Nap: taken out of bleary-eyed, foggy-headed necessity. They are a symptom of poor sleep hygiene, and they can strike at any time.

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The kind of nap you choose

 ... will depend on several variables:

  • How much time you have at your disposal.
  • How much time you'll need to recover from sleep inertia after your nap.
  • How your nap will affect your ability to fall asleep later that day.

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When to nap

There's no such thing as a single perfect time to take a nap, but a commonly recommended window. For most people, early afternoon is best. 

We are biphasic sleepers: we pack in most of our sleep at night, but most people's brains experience a dip in alertness somewhere between 1 and 4 p.m.

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Timing is key

Plan your nap for the time when your body is naturally sleepier and you’re more likely to fall asleep.

Everybody, no matter if they live in a warm or cold climate or if they’ve eaten a big meal, experiences these subtle changes at bedtime and, to a lesser extent, in the afternoon — usually around six to eight hours after waking. For most people, “prime napping time falls between 1 and 3 p.m.,”

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The best time to nap

The most natural time to take a nap, based on our circadian rhythms, is in the afternoon sometime between 2 and 4pm. 

The ideal time to snooze is when a nap would contain a good balance of slow wave and REM sleep. This balance typically occurs 6 to 8 hours after waking.

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Eat Meals Earlier 

Don't eat any heavy foods within two hours of bed time. 

If you get too hungry as bedtime creeps around, there are a few foods that are okay to eat before bed, and can even help you sleep—like bananas, oatmeal, and whole wheat bread, to name a few.

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