The Hypnos Ortho Slumber Mattress is designed for those who prefer firmer support without compromising comfort. Engineered to promote healthy spinal alignment and deliver reliable, robust support night after night, its a great choice if you sleep on your back or prefer a more structured feel. Built with quality materials and Hypnoss expert craftsmanship, this mattress balances firm support with durable comfort, helping you wake up feeling refreshed and well-rested. At its core, the ReActivePro 7-turn pocket spring system delivers tailored support and pressure relief, adjusting to your body and offering full edge-to-edge comfort. The mattress is expertly finished with two rows of hand side-stitching and a smooth, pure cotton cover that is naturally fire-resistant and completely free from chemicals. Extra FirmTension. Features:. ReActivePro 7-Turn Pocket Springs Advanced pocket spring system for responsive, full-body support, excellent airflow, and improved temperature regulation. Responsible British Wool Naturally breathable and insulating for year-round comfort, certified to the Responsible Wool Standard. RWS Certified Wool, eOlus Fibre Layer Sustainably sourced natural fibres offering durable support, moisture control, and natural cooling. Soft Cotton Cover Made with certified sustainable cotton and viscose for a fresh, soft, and naturally fire-retardant sleep surface. Hand Tufted Finish Traditional hand tufting secures fillings for long-lasting comfort and a premium finish. Two Rows of Hand Side Stitching Strengthens mattress edges, prevents roll-off, and maximises the sleeping surface. Flag-Stitched Handles Practical handles on all sides for easy positioning and rotation Chrome Air Vents Promote airflow to help regulate temperature and keep the mattress fresh. Easy Care No turning required, simply rotate regularly. Eco-Friendly Packaging Packed in renewable, recyclable sugar cane packaging. 100 Recyclable Foam-Free Designed with sustainability in mind to avoid landfill. 10 Year Guarantee. Dimensions:. *Single - W 90cm 3ft x L 190cm 6ft3 x D 28cm 11 - Mattress Weight - 24kgs 53lbs *Small Double - W 120cm 4ft x L 190cm 6ft3 x D 28cm 11 - Mattress Weight - 30kgs 66lbs *Double - W 135cm 4ft6 x L 190cm 6ft3 x D 28cm 11 - Mattress Weight - 32kgs 71lbs *King Size - W 150cm 5ft x L 200cm 6ft6 x D 28cm 11 - Mattress Weight - 42kgs 93lbs *King Size Zip and Link - W 2 x 75cm 2ft6 x L 200cm 6ft6 x D 28cm 11 - Mattress Weight - 21kgs 46lbs *Super King Size - W 180cm 6ft x L 200cm 6ft6 x D 28cm 11 - Mattress Weight - 50kgs 110lbs *Super King Size Zip and Link - W 2 x 90cm 3ft x L 200cm 6ft6 x D 28cm 11 - Mattress Weight - 26kgs 57lbs Important Information:. Mattress only supplied, divan and headboard avaialable seperately.. Please note that pocket sprung mattresses must not be used with a base for which they are not designed. Slats on a bed frame should be no less than 70mm apart, to ensure the mattress receives adequate support. Failure to use an adequate base could invalidate the warranty from the manufacturer. Please check with us for more details..