Glamour details several reasons why people may wake up clammy.

The first thing to do is check your pj’s, says Michael Breus, Ph.D., a sleep specialist and author of Good Night: The Sleep Doctor’s 4-Week Program to Better Sleep and Better Health. Are they made of polyester, a fabric that can contain body heat? What about socks? They can trap extra body heat.

What to do about it: Take your socks off and switch to a lighter, more breathable fabric like cotton. (Or if you’re up for it, try sleeping in the nude.)

Read the full story at glamour.com