Mattress Topper: Get an anti-allergic mattress topper. Strong: Has strong corner straps which keep the topper firmly in place. Sizes: Choose from four different sizes. Material: Made from soft bounce back anti-allergic micro fibres. Features: A super thick box sided mattress topper, that keeps the filling firmly in place assuring you a relaxed comfortable night's sleep. Care Instructions: Machine washable and can be lightly tumble dried. Deep Sleep Mattress Topper | Living Social