It's no secret: Americans are chronically sleep ... "We've had reports from China that there are napping-imposed rules, a time when the lights go down, and everyone has to put their head on ...

No late afternoon naps ... napping past 4 p.m. would likely interfere with their nightime sleep. Let's face it, nap time is also great for parents: It allows you to get things done or just ...

age and medicine use also can play roles in figuring out the best time of day to nap." So, how long should a nap last? Both the Sleep Foundation and Mayo Clinic propose a nap duration of 20 to 30 ...

However, this association was not found in the hippocampus. Curiously, more time spent napping — and sleeping in general — is correlated with increased risk for a slew of adverse health ...