Ambience (sic) is a popular sleep sound app for Android. It features a clean, simple UI along with a variety of calming sounds. They include things like rain, waves, crickets, and even some music. It ...

The best sleep apps, like Calm and Headspace, support healthier sleep habits by offering guided relaxation, soothing ...

Animals have evolved to sleep in extreme ways — for example, taking micro naps during parenting, sleeping on the wing during ...

What has puzzled researchers and philosophers for many centuries is the ‘why’ of sleep, along with the ‘how’. We human animals know from experience that we need to sleep, and that the longer we go ...

A new study analyzed the sleep patterns of jellyfish and sea anemones and found they share some sleep traits with humans. The ...

Some animals can sleep with just half their brain at a time. Understanding this phenomenon can help us learn more about human sleep, too.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you’ve ever had a hard time focusing or falling asleep because you can’t seem to block out what’s ...