Ideal for main bedrooms, guest rooms, rental properties, student accommodation and anyone replacing a tired mattress. Our best-selling mattress, and it is easy to see why. 20cm is where memory foam does its best work - deep enough to cushion your shoulders and hips properly, firm enough underneath that you never feel like you are sinking or fighting to turn over. If you are unsure which depth to choose, choose this one. Visco-elastic memory foam responds to body heat and moulds to your shape, spreading your weight so the places that usually wake you - shoulder, hip, lower back - stop being pressure points. It supports the spine and neck through the night, while a denser layer beneath keeps you level instead of letting you bow into the mattress. Because the foam absorbs movement rather than passing it across the bed, you are far less likely to be woken when your partner turns over. Its open-cell structure lets air circulate freely rather than trapping heat, and the foam is dust mite and mildew resistant - worth knowing if you suffer with asthma or allergies. The foam is CertiPUR certified, meaning it is independently tested and free from heavy metals and dyes. Both the materials and the mattress itself are made here in Britain, in a state-of-the-art facility in the heart of Yorkshire, and the whole mattress is tested to UK fire safety regulations. The soft knit cover unzips completely and machine washes, so the mattress stays fresh for years rather than months - and a bed can be properly freshened between tenants or guests. Available in all standard UK sizes, from Small Single to Super King. Your mattress is delivered rolled and boxed, which makes it far easier to carry up stairs and through narrow doorways than a conventional mattress. Please open it within 72 hours of delivery. Take it out of the box and unwrap it fully so it can unroll - do not use anything sharp to cut it open. Once unrolled, allow 48 to 72 hours in a well-heated, well-ventilated room for it to expand to full size and for the natural foam odour to clear. Any questions, our UK-based customer care team is here to help.

All mattresses are compressed using roller presses with over 10,000 lbs per square foot. The compressed mattresses are than folded and rolled for vacuum packing using state-of-the-art technology. All our mattresses are rolled and boxed to make it easier to ship. The packaged dimensions for this product regardless of the size is: 1000 x 380 x 380cm.

Something not quite right? You have 21 days from the day you receive it, to send something back. When you purchase Debenhams Deliver+, you will have an extra 14 days on top of our standard 21-day window to initate a return.

Please note, we cannot offer refunds on fashion face masks, cosmetics, pierced jewellery, adult toys, and swimwear or lingerie if the hygiene seal is not in place or has been broken.

Items of footwear and/or clothing must be unworn and unwashed with the original labels attached. Also, footwear must be tried on indoors. Items of homeware including bedlinen, mattresses, and toppers, and pillows must be unused and in their original unopened packaging. This does not affect your statutory rights.

Click here to view our full Returns Policy.