Waking up with a painful or stiff back is frustrating, and sometimes the secret offender is your mattress. The proper mattress can do wonders for the well-being of your back during those waking hours, ...

Another key psychological mechanism contributing to sleep procrastination is delay discounting; the favouring of immediate ...

You know that a good night’s rest recharges your body and mind for the day ahead, allowing you to recover and recalibrate so ...

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

At the heart of The Matrix is, well, Matrix, a simulated reality created by artificial intelligence to give us humans a proper sleep so we don't wake up to the reality.

Krista Figari woke up in her Manhattan apartment and made her bed like she did every morning — then disaster struck.