This deal from Wowcher
From £29 instead of £130 (from Onyx Beds) for a Ruby orthopaedic memory sprung mattress- choose from six sizes and save up to 78%
Get a Ruby orthopaedic memory sprung mattress. Eight inches deep with a memory foam layer which contours to your body’s natural shape. Features a 13.5 open coil bonnell spring which aims to relieve pressure points and promote good blood circulation. Orthopaedic mattress with a medium/firm comfort rating – ideal for front or back sleepers. Hypoallergenic and deep micro quilted for extra comfort. Choose from small single, single, small double, double, king or super king sizes.