If you're looking for the best pillow for side sleepers, this Snuggledown Side Sleeper Pillow is deep filled for extra comfort if you prefer to sleep on your side. Side Sleepers will benefit from the firm and deep box wall construction this pillow offers, as it will help to lift and support your head so that the spine and neck stay in alignment and neck stiffness is avoided. The Side Sleeper pillow from Snuggledown has been designed to fit in a standard pillowcase, and its lovely 230 thread count cotton cover is breathable and features premium piped edging. As it's made of synthetic materials, this pillow in non-allergenic, which means there's nothing in them that could cause allergic reactions which is great for peace of mind and essential of allergy sufferers.