Sleep Hack: Keep Your Feet Outside Your Covers
J Thoendell stashed this in Science
What it comes down to, she thinks, is the connection between sleep and temperature. Sleep researchers know that right before you fall asleep, your body temperature starts to drop; in the deepest stages of sleep, your body is at its coolest, about one or two degrees below normal. Some scientists believe cooler temperatures cause sleepiness, and although the pre-slumber cooling process happens naturally, there are a few things you can do to help it along, like taking a warm bath right before bed, for example. When you leave the tub, your body temperature rapidly cools, triggering that sleepy feeling. A warm beverage works the same way.