Alpine SleepSoft earplugs have an average damping (SNR) of 25 dB. This means that disturbing environmental noises are muffled. However, you will still hear significantly louder noises. Of course, you will hear them less loud. Many people find it easier to fall asleep while wearing the earplugs and wake up less easily. Noises such as your alarm clock, doorbell or children can still be heard.