Pocket Spring and Memory Foam Hybrid Mattress. POCKET SPRING HYBRID: The Summerby Sleep No. 3 Pocket Spring Hybrid Mattress combines body contouring memory foam with the exceptional body support of individually encased pocket springs.PRESSURE RELIEF: A supportive memory foam layer helps align the spine to reduce pressure points for increased comfort. SOFT KNITTED COVER: Gentle and kind to your skin, Summary's knitted cover feels soft, cosy and comforting. MADE IN THE UK: All Summerby sleep products are made in our UK factory to the highest specification, fully compliant with BS7177 and all UK National Bed Federation regulations. This item is in the category "Home, Furniture & DIY\Furniture\Mattresses". The seller is "sunde-kau" and is located in this country: GB. This item can be shipped to United Kingdom.