The Comfortnights Waterproof & Wipe Clean Single Fitted Sheet is easily wiped clean with warm water and detergent.It won\'t crack or harden and is suitable for long term use, saving you time and money. Designed to be used with normal bedding, this fitted sheet is also flame retardant to BS7175 source 5. It has been carefully manufactured from a pale green tinted flame retardant polypropylene and complies with all current NHS and Government standards. Making it ideal for use in domestic and care settings.