Most animals close their eyes when they sleep. But did you know some amazing creatures can actually sleep with their eyes ...

Highest performance seen by combining five features but only analyzing short (0.1- to 2-second duration) movements.

Taking longer to enter the dream phase can disrupt the ability to consolidate memories and interfere with emotion regulation.

It usually takes each cycle of sleep 90 minutes or more to complete. The study, which involved 128 participants with mixed ...

A delay in getting to the rapid eye movement (REM) stage of sleep may be linked to Alzheimer's disease and related dementias, ...

Scientists have found that both the quality and amount of sleep we get can affect our risk of developing Alzheimer’s disease.

Scientists have uncovered a potential link between delayed REM sleep and Alzheimer's disease. A new study shows that ...