A reading starting point

Get to know the nasal options.

A nasal device may make breathing feel easier. The useful question is what else it changes.

Read the difference between easier airflow and less snoring.
Compare strips, internal dilators and magnetic bands, including their limits.
If your nose is often blocked, that’s worth raising with a pharmacist or doctor in its own right.

For most people who snore, the evidence for nasal devices is weak. They make the most sense when the nose itself is the problem.

Your next step

Check whether the nose is really the problem.

Notice whether you breathe through your mouth at night or wake with a blocked nose.
If your nose is often blocked, ask a pharmacist or doctor about it first.
If you still want to try a nasal device, compare the running costs before buying.

Original sources & their limits

Nasal dilators for sleep apnoea: systematic review (2016) ↗
Read. 14 studies, 147 people with sleep apnoea. No significant change in breathing events, oxygen levels or snoring index. Small, varied studies.
Report on two placebo-controlled nasal-strip trials (AJMC, on Advances in Therapy 2019) ↗
News report read. Two manufacturer-funded trials (140 and 130 adults with chronic night-time nasal congestion, 14 days). Strips did not improve sleep problems more than placebo strips. They measured sleep in congested people, not snoring.

Sources checked 26 Oct 2026.