If you're looking for the best pillow for side sleepers, the pillows in this Snuggledown side sleeper pillow 2 Pack are 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 these pillows offer, as they will help to lift and support your head so that the spine and neck stay in alignment and neck stiffness is avoided. The pillows in this Snuggledown Side Sleeper Firm Support Pillow 2 Pack have been designed to fit into standard pillowcases, their lovely 230 thread count cotton covers are breathable and feature premium piped edging. All our synthetic pillows and duvets are non-allergenic, meaning there's nothing in them that could cause allergic reactions which is great for peace of mind, and essential for allergy sufferers.