Do you sleep naked? If you do, this DOC on TikTok says you should stop! (ha! That all rhymes!) Dr. Tony Youn says that you should NOT be completely naked. He wants you to at least put some under drawers on. According to Dr. Youn, humans (all of us, male, female, undecided) all pass gas while we are sleeping. That's not the bad part. With that gas is a small amount of fecal matter (that's poop btw) that settles on your sheets, and now you are sleeping in it! Once isn't a big deal but all that farting eventually builds up some yuck in your sheets. Dr. Youn says that wearing underwear would filter that and keep it off your sheets. Um ewwww!