Elastic: With elasticated corner straps for an easy-fit. Function: Add a layer between you and your mattress for added comfort, a fresh feeling every night, and active protection against bacteria and dust mites. Size: 135cm x 190cm. Material: Made with a 100% polyester cover and a 100% polyester hollowfibre filling. Care: Machine washable at 40 degrees C, suitable for tumble drying. Mattress Protector: Get a Silentnight touch of luxury double mattress protector. Silentnight Double Mattress Protector | Living Social | Living Social