Why do you keep waking up in the middle of the night: Common causes and how to sleep better

Waking up frequently in the night, especially at 3 a.m., can stem from stress, insomnia, aging, medications, or underlying ...
Los Angeles Times

Tired All the Time? Your Sleep Cycles (Or Sleep Calculator) Could Be the Key to More Energy

Ever wonder why some mornings you wake up ready to go, and others you feel like a zombie? The difference often comes down to when you wake up during your sleep cycle, and that’s exactly what a sleep ...
Rolling Out

How the 90-minute sleep cycle can improve your mornings

We’ve all been there — dragging ourselves out of bed feeling like we’ve been hit by a truck despite getting a full night’s sleep. The alarm blares, and you wonder how eight hours of rest could ...
Popular Science

Is it better to sleep in cycles?

The internet claims waking at the end of a sleep cycle will leave you refreshed, but experts aren’t convinced. By Clarissa Brincat Published Sep 9, 2025 9:00 AM EDT Image: DepositPhotos Get the ...

Key facts behind why you are struggling to sleep

Sleep cycle transition: Waking up around 4 am is often attributed to the natural progression of the sleep cycle . After ...