This mattress is approximate. 7.25 inch deep and combines both memory foam and a traditional European engineered coil spring unit. A great low-cost budget memory foam mattress which is ideal for adults and children. It contains a European-engineered, spring unit and generous layers of luxury padding as well as memory foam. The memory foam benefits include pressure relief on the body, which helps soothe aches and pains to make sleep more comfortable, ensuring a peaceful night's sleep. Hand tufted to prolong the life of the mattress, this technique keeps the materials from moving and sagging over time and decreases body impressions. Tufting also provides you with an even, more comfortable sleeping surface and is finished with a super soft sleep surface which cushions the sleeper's body, resulting in quality, comfort, and support. Its mattress-in-a-box technology allows the mattresses to be vacuum-packed, rolled, boxed and delivered directly to your door. All mattresses are designed and manufactured in the UK and comply with all UK and EU regulations (BS 7177:2008 for Domestic Use). Size: Single. Dimensions: 90 x 190cm. Depth: 18cm.