Even if you’ve enjoyed a full night’s sleep, getting out of bed can be difficult if your alarm goes off when you’re in the middle of deep sleep (stage N3).
If you want to make mornings less painful—or if you know you only have a limited time for sleep—try setting a wake-up time that’s a multiple of 90 minutes, the length of the average sleep cycle.
For example, if you go to bed at 10 p.m., set your alarm for 5:30 (a total of 7 ½ hours of sleep) instead of 6:00 or 6:30. You may feel more refreshed at 5:30 than with another 30 to 60 minutes of sleep because you’re getting up at the end of a sleep cycle when your body and brain are already close to wakefulness.
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