Pillow: Grab yourself this Silentnight perfect pillow! Sleep positions: Suitable for all sleep positions. Hollowfibre: Each pad is covered in microfibre and filled with a signature soft and springy hollowfibre. Guarantee: Two year manufacturer's guarantee. Adjustable: Designed to allow you to change the height and firmness of the pillow to suit you. Inside the zipped removable cover are three inner pads that you can add or remove as you wish. Hypoallergenic: The pillow will not trigger allergies. Silentnight Perfect Adjustable Pillow | Living Social