This deal from Wowcher
From £39.99 instead of £149.99 (from Sleepyn) for a Cool Blue memory foam mattress – choose from six sizes and save up to 73%
Get a grey Cool Blue memory foam mattress. Mattress is 9-10 inches deep with a top layer of memory foam. 13.5 open coil bonnell spring for a longer life. Medium – firm comfort, perfect for side or front sleepers. Hypoallergenic filling which is ideal for allergy sufferers. Choose from six sizes (see full details and prices below).