REM stages and one REM stage. Ideally, you repeatedly cycle through each stage. Learn how long each stage lasts.

Should you be sleeping on your back for better health and skincare? We spoke with dermatologists and trichologists to find ...

When is the best time to take nap? A sleep doctor reveals the optimal time of day to take a nap in order to feel rested and ...

— The best sleep environment is a cool, dark, quiet room. In noisy households, earplugs and a sleep mask can help. If a bedroom is too warm, it can affect getting to sleep and staying asleep, says ...

April Theory is the notion that this springtime month is perfect for setting goals and making a fresh start. The theory goes ...

For seven days, they recorded their diet against objective sleep parameters. The study concluded that a 6% rise in protein ...

Sunlight plays a huge role in our energy levels and sleep quality. One study found that those who got enough morning sunlight ...

The Eight Sleep mattress pad fits over your mattress like a fitted sheet and connects via tubing to the “Hub,” which is about ...

The PurplePlus mattress has a unique gel top layer, which won’t come as a surprise to anyone familiar with Purple. The bed’s ...

The Ozlo Sleepbuds are basically the Bose Sleepbuds that allow you to stream audio. While they can't yet track sleep data, ...

How We Chose the Best Headphones for Sleeping and Meditation ... the main purpose here is getting to sleep. We chose solid-sounding picks, but don’t feel the need to go all-out on the most ...

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources ...