A vet has issued important advice to all dog owners who feel concerned when their dogs are sleeping and do this common thing.

This anniversary sale is full of great deals to treat yourself or to get Mother's Day gift shopping done and dusted before ...

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

Humans and mice with a predisposition for ALS displayed altered sleep patterns before symptoms began, offering a potential ...

Obstructive sleep apnea (OSA)—when the soft tissues in the throat collapse and block the airway—especially correlates to ...

On an Apple Watch, "core sleep" is another name for light sleep, which scientists also call stages N1-N2. It is not a type of ...

Hallucinogens like DMT, psilocin, and LSD might rewrite the rules of sleep, blurring the line between dreams and reality.

Oxygen re-saturation during sleep is significantly affected by sleep stage and by cardiovascular and pulmonary comorbidities.

While subjective data suggests prior mTBI leads to poorer sleep, there is little objective data to support this association.

For more on the nature of sleep, go here.] Scientists believe that dreaming plays a role in the consolidation of memories, ...

If you're on the fence about the best sleep masks, know that there are two types of sleepers in this world: Those who can ...