mouth taping

Mouth taping is the TikTok sleep hack where people put tape over their lips at night so they are forced to breathe through their nose instead of their mouth. It got popular as a “better sleep, less snoring” thing, but doctors keep warning it can be risky if you cannot breathe comfortably through your nose. Think of it like DIY parenting for your airway, except your face is the thing you are “grounding.” (healthline.com