A vast majority of Americans wake up regularly during the night, according to a U.S. News survey. Sleep expert Wendy Troxel explains why this happens and how to help.

When is the best time to take nap? A sleep doctor reveals the optimal time of day to take a nap in order to feel rested and ...

Sleep medicine specialists have identified three specific approaches that consistently help people wake feeling more refreshed, regardless of their genetic sleep requirements: Establishing ...