Review of sleep taping trials reports limited backing

Review standards call for searching broadly, screening carefully and counting every person studied, and that process left 213 patients across ten studies after 120 articles on mouth taping for sleep and breathing were checked, in work covering MEDLINE, Embase and Google Scholar from February 1999 to February 2024.

Only randomized controlled trials and prospective studies were kept, using both measured and reported outcomes. Two of the ten reported statistically significant improvement in apnea markers like apnea hypopnea index or oxygen desaturations. The rest of the included studies found no difference from mouth taping and noted possible risks including asphyxiation with nasal obstruction.

Most studies turned away people with nasal obstruction or pathology. The review names allergic rhinitis, adenoidal and tonsillar hypertrophy and deviation of the nasal septum among common reasons for mouth breathing. The authors say more studies are needed to clarify any clinical benefit. The right patient selection, tape type, duration and safety monitoring stay unknown, if any benefit exists.

Research published in JAMA Otolaryngology Head and Neck Surgery in 2024 examined airflow during mouth occlusion in more than 50 patients. Total airflow improved on average yet responses differed across individuals, and some patients with the poorest airflow showed distinct worsening with mouth occlusion. Small nonrandomized and uncontrolled studies of mouth taping report a broad spread of responses, with possible improvement in snoring and sleep apnea in some mild cases of airflow limitation.

That mixed pattern deserves care from anyone considering tape before bed. Reducing airflow with mouth tape can harm people with a narrowed or obstructed airway, and may add cardiovascular strain from oxygen drops during sleep. If you live with cardiovascular disease or a known sleep apnea diagnosis, it is best to avoid mouth taping. Interrupted sleep from apnea can bring excessive fatigue, sleepiness, insomnia and cognitive problems.

Adults with obstructive sleep apnea are usually treated with a continuous positive airway pressure machine, though many people use it inconsistently because of discomfort. That difficulty helps explain curiosity about simpler bedtime habits. “We lack much good quality evidence to support mouth taping,” a sleep clinician interviewed by CU Anschutz said. Sleep clinicians note nasal breathing may aid some people with mild limitation, but results vary by person.

Whether mouth taping changes long term cardiovascular, cognitive and quality of life outcomes is not shown in the evidence reviewed. For now, attention rests on whether larger trials with clear safety screening alter understanding, and whether guidance separates mild snoring from diagnosed breathing disorders during sleep.

Like a strong herb that calls for respect before use, the calmer course is to check the nose and breathing first and save tape for last, while noticing how the night and the morning truly feel.