This platinum bunk bed open coil sprung mattress from julian bowen really is value for money if budget is a concern it comes with a belgium damask covering and low profile open coil spring unit and is specifically designed for use on the upper bunk of julian bowen bunk beds please note that this mattress is thinner than a standard single mattress features and benefits suitable for use on an upper bunk bed entry level mattress size width 90 cm length 190 cm depth 18cm