Some nights, sleep comes easily. Other nights, you have to be curled into the fetal position—covers between your legs—just to catch a wink.
“When you lie on your back, you equally distribute your weight across your frame,” he explains. “In addition, your face is pointing upward, so there is no external stress on your neck.” (The only exception is for those who snore, have sleep apnea or are pregnant. Then it’s better to sleep on your side.)
According to The National Sleep Foundation, sleeping on your back is the least popular position (only eight percent of people do it) but they agree—it's the healthiest option for most people.