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Few experiences rival the calm satisfaction of falling asleep easily and waking up feeling fully rested. But sleep is more than a luxury or idle downtime, it’s a vital biological process that supports ...

Getting enough sleep is vital for our mental and physical health, and regularly missing out on rest can lead to sleep deprivation, and with it, symptoms like fatigue, irritability, grogginess and ...

Sleeping for 7 to 9 hours at night isn't the only way to catch some z's. Here are four alternative sleep cycles -- and they're pretty obscure. Annie Miller Medical Reviewer Annie Miller is a licensed ...