Phonak Serenity Choice Sleep are reusable earplugs which reduce the background noise level by 24dB during your sleep. The earplugs are designed to reduce the effect of partner snoring, noisy hotels, street noise, loud neighbours or any irritating background noise. The earplugs provide an open air passage to the ear keeping the ears ventilated eliminating the 'hot' irritation feeling and 'hearing your pulse' feeling caused by restricting blood flow, especially when sleeping on your side. The earplugs include hypoallergenic ear tips that are made from medical grade TPE. The product is available in small(5-10mm), medium(6-11mm) and large size(7-12mm) and includes 1 year warranty.