The coloured King Bed Brolly Sheet is a cost effective option for bedding protection it is designed to be placed over the bed. The double size bed pad features tuck in flaps, these are designed to go underneath the mattress and help to secure the pad in place. The absorbent pad features a 100% Cotton surface for comfort and a polyester covered Polyurethane backing which is 100% waterproof soft and quiet. These Brolly Sheets can be machine washed and tumble dried. Please note: Brolly Sheets are not suitable for use with Tempur mattresses.