COIL SPRING HYBRID: The Summerby Sleep No. 1 Coil Hybrid Mattress combines memory foam with the traditional support of coil springs for a great medium-feel mattress. Perfect for kids' bedrooms, guest beds, lofts and apartments, or as an affordable low-cost mattress option 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, Summerby'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 EASY SHIPPING: This mattress is compressed and shipped in a box for quick, convenient delivery and easy set-up