The interruption problem
Unexpected sound can break a calm wind-down or wake someone between sleep cycles. The goal is often to reduce sudden changes, not to create total silence.
Start at the source
Check a rattling vent, an alerting phone, or a door that catches sound from the rest of the home. Basic fixes are often more effective than adding another device.
Use sound thoughtfully
A steady fan or gentle ambient sound can be useful for some people. Keep volume comfortable and avoid treating a sound app as a remedy for a persistent sleep problem.
