One in three adults sleeps in the nude, according to an international study by the U.S. National Sleep Foundation.

Au naturel, in your birthday suit, in the buff, unclothed, disrobed, stripped. Whatever you want to call it, jump on the bandwagon and start shedding the layers, because there are some major benefits to sleeping naked.

Oh, and FYI: Keeping it cold in the bedroom is key to heating things up. Here's why sleeping naked isn't a bad idea.