DOUBLE MATTRESS: 4ft6 x 6ft3 (135x190 cm) with a depth of 18cm. This mattress combines a supportive open coil spring system with pressure-relieving memory foam layer to deliver balanced comfort, responsive support, and reduced motion transfer for a restful night’s sleep. MATTRESS: The design & construction of this mattress is perfectly suited for kids beds, bunk beds, spare rooms, guest beds, lofts, apartments mattress option for everyday use. WAVE COOLTOUCH COMFORT TOP COVER: Extreme’s Cooltouch Core top cover fabric provides luxuriously soft comfort & cosiness & is also highly breathable - helping body temperature regulation & preventing overheating whilst sleeping. It is quilted in a modern wave design. MADE IN THE UK: This mattress is hand made by experienced craftsmen at eXtreme Comfort's West Yorkshire mattress factory & is fully compliant with all relevant UK fire safety regulations for domestic use. BS7177:2008 (Low Hazard) SHIPPING: This mattress is compressed, vacuum packed, rolled & boxed for ease of handling upon delivery. simply carry to the room of your choice de-box & de-bag the mattress & watch it expand to its correct size & shape. PLEASE NOTE: From time to time, the outer fabric or panel design may differ from the product pictured. These changes are visual only – the internal mattress construction, fillings and specification remain unchanged.