The Silentnight Anti-snore pillow has been cleverly designed to help reduce snoring. Whilst we don't claim to cure your snoring completely, the pillow can help to reduce snoring, or your levels of snoring. Tested by the British Snoring & Sleep Apnoea Association who found the pillow reduced snoring frequency and volume by approximately 50%. Within the centre of the pillow is an ergonomically shaped foam core which has been designed to support your head and neck, keeping it at just the right position to improve your breathing. This in turn can help to reduce snoring. The foam is surrounded by hollowfibre, so the pillow is soft, but supportive and is ideal for people who sleep on their back or side. The outer fabric is smooth polycotton which is soft and breathable. The pillow comes with a two year manufacturer's guarantee so you can sleep soundly with your purchase. The Anti-snore pillow is hypoallergenic which means they do not contain any materials that are likely to cause allergies.