Offering great comfort and support the Air mattress uses a traditional open coil spring system, a series of interlinking coiled springs which are evenly set within a durable framed structure which offers excellent support All our Sleep Soul mattresses come vacuum packed and boxed for extra convenience Sleep easy with a 10 year manufacturer’s warranty, so achieve that good night’s sleep that you deserve with Sleep Soul by Birlea Remove the inner plastic wrap and wait for the magic to happen. In 2 hours its good and in 24 hours its great. Our Sleep Soul range is available in 4 sizes; 3ft single, 4ft small double, 4ft6 double and 5ft King size