Sleep Pretty Tonight Foam Ear Plugs are designed for light sleepers who have trouble sleeping through the night. They have been tested and certified to provide a Noise Reduction Rating of 32 decibels to provide great overall hearing protection. These extremely comfortable earplugs are made in a proprietary formulation of polyurethane hypoallergenic foam. They are designed to have a more petite size in order to accommodate those who have a smaller ear canal. The super soft feel of the ear plugs allow you to sleep through the night without feeling uncomfortable or uneasy. While the Sleep Pretty Tonight earplugs are primarily designed to block out snoring or traffic noise while you sleep, they are also used to reduce noise while you study, read, meditate, travel, or listen to music.