Uno S Plus Open Spring Mattress Dimensions 2000x900x15cm Each Stompa superior sprung mattress is made by skilled craftsmen locally in Yorkshire. It is the perfect choice if you require a top quality product which will provide medium support and exceptional comfort for a value for money price. The mattress consists of a 13.5 gauge bonnel sprung unit with reinforced edges. The next layer is a 750 gram felt pad to the top and bottom followed by a layer of 600 gram bonded polyester fibre for premier comfort. The mattress is then covered in a smooth Stompa logo fabric made from a polyester / polyprop mix. The mattress is 15cm (6") deep to make it safe for use with the Uno S Plus range beds. Every mattress comes with a 1 year guarantee.