"There's nothing better than wintertime sleep that feels like hibernation, so I always make the room a few degrees cooler before bed. My surroundings also have to be really dark. I even cover my digital clock."
Our December issue features Oprah's Favorite Things—as well as your chance to win them all! You'll also find our easy holiday declutter plan, Dr. Oz's guide to sleeping better (starting tonight) and the ultimate holiday menu.