Adults spend about one-third of their lives sleeping. But sleep is more complex than many people might realize. Rather than being a single state, sleep occurs in two main forms. Rapid eye movement ...
Need multiple alarms to wake up in the morning? Here’s what could be happening, according to experts
Sign up for CNN’s Sleep, But Better newsletter series. Our seven-part guide has helpful hints to achieve better sleep. So you set your first smartphone alarm for 6: ...
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