This deal from Wowcher
From £79 instead of £240 (from Sleepyn) for a 3000 pocket sprung mattress – choose from six sizes and save up to 67%
Get a 3000 pocket sprung mattress! 25cm depth with memory foam. 1000 responsive pocket springs which move independently to actively contour to the shape of your body. Medium firmness – perfect for those who like to sleep on their side. Hypoallergenic with an anti-allergy treated cover. Choose from six sizes (see prices below).