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Nasal strips and dilators: do they actually help snoring?
How do they work?
External strips pull outward on the sides of the nose. Internal dilators mechanically widen the nostrils. Both aim to reduce nasal resistance.
What does recent evidence show?
A recent systematic review and meta-analysis included 17 studies with 496 participants. It found no significant average improvement in apnea-hypopnea index, snoring index, sleep architecture or oxygen saturation with nasal dilators. The authors concluded that nasal dilators should not be recommended as monotherapy for sleep-disordered breathing. Meta-analysis.
Why can some people still feel better?
A device may improve nasal breathing comfort without addressing the main source of snoring. That can be useful when congestion is present, but subjective improvement does not prove that abnormal breathing events have disappeared.
External strip or internal dilator?
| Type | Mechanism | What to check |
|---|---|---|
| External strip | Pulls nasal sidewalls outward | Adhesive, sizing, skin irritation, overnight hold |
| Internal dilator | Mechanically widens nostrils | Size, softness, comfort, cleaning |
The Sleeple comparison framework
- real mechanism;
- available sizes;
- materials and comfort;
- reusable vs disposable;
- cleaning;
- cost per night;
- returns;
- model-specific evidence when available.
What we will not claim
We will not call a nasal dilator a sleep-apnea treatment or promise that it stops snoring simply because it opens the nose.