Firm Double Mattresses (26 - 30cm Thick)

Double (4'6)

This mattress is designed to offer targeted edge-to-edge support for more sleep space and individual comfort. With Silentnight's Mirapocket spring system encasing 1400 individual pocket springs which respond independently to the weight and offer to zone across the mattress, scientifically proven to provide superior spinal alignment and body support. Hand-tufted through the mattress produces a luxury traditional appearance while eco-comfort fibres allow for a more refreshing experience as it's made from 100% recycled plastic bottles which encourage natural airflow for more breathability through the night. Finished with a soft knit cover, this mattress is hypoallergenic; designed to reduce the chance of an allergic reaction so you can sleep without a worry in a relaxing environment.

This mattress is amazing, I have back issues and this has helped me have a good rest, fast delivery and friendly guy delivering, would recommend have told all my friends and family how amazing shopping on Wayfair is, will be shopping again soon...thanks ;0). Julie. Wirral. Fri Jan 30 2026

Double (4'6)

Rediscover the power of a truly restful night’s sleep with Our Orthopaedic Mattress — where comfort meets support in perfect harmony. Crafted with precision and care, the Orthopaedic Mattress is designed for those who crave extra-firm support without compromising on luxurious comfort. Its high-performance 12.5-gauge orthopaedic spring system, reinforced with a sturdy edge rod, ensures your body is perfectly supported from dusk till dawn — no more sinking or rolling! Wrapped in a premium damask cover, the mattress features traditional and modern fillings, carefully hand-tufted for added durability and long-lasting shape. Enjoy enhanced airflow through integrated air vents, while stitched-in handles make rotating your mattress effortless — keeping it fresh and comfortable for years to come.

lovely mattress. Anonymous. GB. Sun Apr 12 2026

Double (4'6)

Featuring the best in technical innovation, this firm mattress will keep you refreshingly cool in summer and cozy and warm in winter. Lambswool is vertically bonded using cutting-edge technologies, enabling the wool fibers to be extra breathable – perfect for hot sleepers. 2000 ergonomically designed pocket springs shape to your body's unique shape and weight to provide targeted firm support where you need it the most. The mattress is finished off with a cotton-sleeping surface that helps to wick moisture away from the body and aid with ventilation. Designed to be ‘easy care’ so there is no need to flip over, just rotate by the care instructions provided.

Best quality mattress I ever had! No more back pain. Amazing quality!. Anonymous. Sun Feb 22 2026

Double (4'6)

Positioned at the top of the Ortho Plus collection, the Sealy Steeple PostureTech mattress offers the maximum combination of support and durability. Sealys bespoke PostureTech spring system is at the heart of the mattress, designed to provide long-lasting and deep-down support. The springs react to the weight and movement, applying support where your body needs it the most. Tucked inside the spring unit, Edge Guard works in unison to extend the sleeping area and provide added durability. Plus, a Powerpack is located in the center of the mattress offering additional support to the lumbar region, and works simultaneously with the spring unit to reduce any aches that are disturbing your sleep. The Sealy Steeple is a double-sided mattress with each side beautifully tufted for a firmer level of support. All Sealy mattresses are hand-crafted in Britain and come with a 5-year guarantee for extra peace of mind. Firm mattress 29 cm depth available in Single, Small Double, Double, King, and Super king sizes. 5-year guarantee handmade in the UK.

Excellent service and great value. Thanks. Andrew Biggs . Ringwood. Mon Feb 09 2026

Double (4'6)

The Sealy Mellbreak PostureTech mattress is a great option for those who struggle with aches and pains, thanks to the firmer level of support that it provides. Sealys bespoke PostureTech spring system is at the heart of the mattress, designed to provide long-lasting and deep-down support. The springs react to the weight and movement, applying support where your body needs it the most. Tucked inside the spring unit, Edge Guard works in unison to extend the sleeping area and provide added durability. Plus, a Powerpack is located in the center of the mattress offering additional support to the lumbar region, and works simultaneously with the spring unit to reduce any aches that are disturbing your sleep. The Sealy Mellbreak is double-sided with a tufted surface on each side, offering just as much support each time you turn and rotate the mattress. All Sealy mattresses are hand-crafted in Britain and come with a 5-year guarantee for extra peace of mind. Extra Firm mattress 28 cm depth is available in Single, Small Double, Double, King, and Super king sizes. 5-year guarantee handmade in the UK

Double (4'6)

The Sterling mattress by Sealy offers the firmest feel in the Enhance collection, without compromising on that all-important comfort. Pocket springs offer a gentle level of support and work independently to respond to your body shape and create a personalised feel. The springs are sewn together in their own pockets to reduce movement and provide a refreshing nights sleep. Combined with our deepest layer of Geltex, which offers pressure relief to the areas of your body that need it most. Geltex is reactive to both shape and movement and offers breathability in abundance, allowing air to circulate through the mattress easily and regulating your temperature as you sleep. The Sterling mattress is single sided, and finished with a quilted surface for an added touch of luxury. All Sealy mattresses are hand-crafted in Britain and come with a 5 year guarantee for extra peace of mind. Firm, single sided mattress26cm depthAvailable in Single, Small Double, Double, King and Super king sizes.5 year guaranteeHandmade in the UK

Nice mattress. Firm and supportive with a nice soft and comfy top layer.. Anonymous. Fri Aug 15 2025