Depending on your corner of the internet, you might have seen people swearing by this new sleep hack, mouth taping.

People claim they’re better rested, have better breath and stronger jawlines – all because they force themselves to breathe through their noses overnight.

Norman and Tegan tackle this taping trend with an N=1 experiment, and a look at the relevant research.

References:

• Mouth taping: a little less conversation, a little more action, please!
• Effect of mouth taping at night on asthma control--a randomised single-blind crossover study
• The Impact of Mouth-Taping in Mouth-Breathers with Mild Obstructive Sleep Apnea: A Preliminary Study
• The Role of the Nose in Sleep-disordered Breathing
• Acute nasal breathing lowers diastolic blood pressure and increases parasympathetic contributions to heart rate variability in young adults
• Nocturnal mouth-taping and social media: A scoping review of the evidence