Cooling Firm King Size Mattresses

Kingsize (5')

The sprung mattress is very strong and not easy to deform. Standard fire barriers and supportive felt fabric can isolate the sprung to make a safer and excellent sleeping journey. With a fashionable plaid pattern and a white and grey color combination, the double mattress makes your room not so boring and builds a simple style bedroom. The bed-in-box mattress will inflate instantly after unboxing, and it will also keep expanding for about 24 hours so that the foam and spring can fully expand to a nice appearance. The memory foam mattress allows for complete relaxation by molding to your body, relieving key pressure points, and promoting airflow and breathability, the core is made of high-performance independently encased coils, designed to eliminate motion disturbance and keep you sleeping soundly. Back pain relief & motion isolation: The puffy mattress features a plush, soft surface that leaves you floating on a cloud, and the bottom offers medium queen firm mattress support. Perfectly shape your body. Say goodbye to back pain. Plus this memory foam mattress eliminates motion transfer and controls motion to prevent localized bounce, so you can sleep through your partner’s tossing and turning and wake up refreshed. The bed mattress is great for all sleeping positions.

OMG this mattress is what my back and neck have needed all my life, its outstanding, no sinking in at all, firm and very supportive. The 2 inch layer of memory foam on top of the spring base is amazing, honestly, I am well pleased. Along with a hybrid pillow as well, my neck/spine discomfort is gradually improving. Best purchase ever.. Keith. Edinburgh, GB. Fri Feb 27 2026

Kingsize (5')

Designed for a long life of supporting you through the night, this mattress is both ergonomic and hypoallergenic. The mattress features high-density support foam that allows you to sink into the bed while relieving pressure on bones, joints, and muscles. The zipper cover is removable and machine washable for easy cleaning.

As pictured, very thick and comfortable highly recommended. Bethany. Evercreech, GB. Thu Apr 16 2026

Kingsize (5')

Give your sleep a boost by sleeping on our hybrid mattress. Hybersleep StarNap is hybrid memory foam pocket sprung mattress providing firm support. A balanced combination of next-generation memory foam, high density PU comfort foam and up to 1000 individually wrapped pocket springs work in harmony with the 3D quilted Polyblend knitted jacquard cover, proven to wick away moisture and dissipate body heat, Top layer of comfort foam is supported by adaptive memory foam providing a cool and gentle surface providing orthopedic support. The foam layers are supported by high resilience pocket springs to maximise comfort and support, contributing to a better sleep all night, every night. Pocket springs and memory foam combination is less bouncy than traditional mattress, providing excellent comfort without the motion transfer. Designed for optimum adaptive comfort for any sleeping style or position, be it a back-sleeper, side-sleeper or front-sleeper, or anything in between. It may relieve pressure on your hips, back, neck and shoulders. Allowing 30 times greater air flow than traditional foam, 4th generation memory foam offers all the benefits of memory foam without the disadvantage of trapped heat. Mattress must be unpacked within 7 days of delivery and left in airy room before use *colder temperature may extend the time needed to fully expand the white noise story white noise is a home-grown, family run mattress manufacturer based in southwest England. We have been manufacturing much loved mattresses for 12 years. Our aim has always been to improve nation’s sleep health by creating great, comfortable mattresses without compromising on quality.

It’s as hard as a rock maybe a little to much. Anonymous. Tue Mar 10 2026

Kingsize (5')

Experience exceptional comfort and lasting support with the Sareer Reflex Plus Matrah. Designed with an extra-thick layer of premium Reflex foam, this mattress delivers a soft yet supportive sleep surface that adapts naturally to your body. The high-quality Reflex foam is manufactured without fillers, ensuring it won’t crumble or lose its shape over time, so you can enjoy consistent comfort and durability for years to come. Finished with a luxurious two-way stretch cover, the Reflex Plus Matrah offers a smooth, soft-touch feel and added convenience. Providing a medium-to-firm sleeping surface, it is ideal for sleepers who value excellent back support. Versatile and practical, this mattress is perfectly suited for bedsteads, bunk beds, and foldaway beds, making it a dependable choice for a wide range of spaces. Crafted by Sareer, the Reflex Plus Matrah combines comfort, resilience, and thoughtful design for a better night’s sleep.

Really good quality! Fast delivery!. Anonymous. Fri Feb 13 2026

Kingsize (5'), Firm, 15

The orthopedic reflex foam mattress is a high-specification mattress made from super high-density reflex foam which is durable and supports the contours of your body. The mattress is made from the latest foam technology allowing a cool night's sleep with firm support.

amazing quality super soft and comfortable to sleep on. Anonymous. Tue May 05 2026

Kingsize (5')

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