Polyester 4 SIZE CHOICES: 200cm length headboard pillow for King size mattress / 180cm length headboard pillow for Queen size mattress / 150cm length headboard pillow for Twin size mattress / 120cm length headboard pillow for single size mattress. PREMIUM MATERIAL: Our bed gap filler is made of high-quality hypoallergenic memory foam topped with long-lasting polyester offers stability over the gap and premium comfort. Designed to allow you to sleep comfortably without feeling the gap between the beds. Practical for Use: This armest pillow foam fills the gap,so you you won't lose your pillows, pets and children's toys. This kind of bed gap filler is a good helper for home storage. Enjoy Better Sleep with A Headboard Pillow: Bed gap filler is ergonomically designed, which can effectively support the head and neck and relieve body pressure and neck pain. Detachable Washable: The cushion cover is removable with zipper design and non-pilling, as well as hand or machine washable,Very easy to put on and take off for change and wash. No deforming or fading after multiple wash. YURRO'S Bed Gap Cushion close the gap between your headboard or wall and mattress or foot board, ,so you you won't lose your pillows, pets and children's toys. This kind of bed gap filler is a good helper for home storage. Specifications: - Product Name: Bed Gap Filler/Twin Bed Bridge/Sofa Armrest Cushion/Headboard Pillow - Material: 50D high density foam - Thickness: 5cm/ 10cm / 15cm - Size: 120x5cm / 120x10cm / 120x15cm / 150x5cm / 150x10cm / 150x15cm / 180x5cm / 180x10cm / 180x15cm / 200x5cm / 200x10cm / 200x15cm - Removable Washable Package Including: 1 x Long Bed Gap Filler