Earplug NRR vs SNR: Ratings and Personal Fit
Understand why NRR and SNR are different labels, why one earplug can show both, and what neither rating proves about sleep or personal protection.

A considered bedroom
Explore the light, sound and everyday equipment
around your night-time routine.
Understand why NRR and SNR are different labels, why one earplug can show both, and what neither rating proves about sleep or personal protection.
For overnight use, start with three numbers and one placement rule: aim for a sound level of 30 dBA or lower at the fan speed you will actually use.
Compare four sunrise alarm clocks and wake-up lights by sunrise settings, sounds, app needs and size, from maker specs and help pages.