The Flexispring Double Mattress is an excellent value mattress which offers high-end comfort for a great nights sleep. Composed of a traditional open-coil spring base within a modern foam-encapsulated outer frame, it is anti-allergenic & resistant to mites. The thermo, knitted stretch fabric cover is zipped so it can be easily removed for washing purposes. Suitable for standard double bed frames, the mattress measures in at 20cm deep & will fit standard sheets. Delivery is absolutely free of charge & the vacuum-packed mattress will even be carried to your room of choice.