Nontoxic Open Coil King Size Mattresses

Kingsize (5')

This product has been carefully designed with a combination of a European-engineered open coil spring system with a layer of the new innovative natural foam memory fiber, with a depth of 7.5” inches (18cm approximately). The open coil spring system allows the weight to be distributed evenly across the mattress to provide extra comfort and support for the sleeper for a comfortable night’s sleep. The mattress has a micro-quilted cool touch and a classic straight-line design top panel with a layer of cutting-edge visco-elastic memory foam, the foam softens when you lay it and maintains the body at a cool temperature. The memory foam adapts and shapes to the contours of your body, relieving pressure from building. The mattress has hypoallergenic and anti-dust fillings and an anti-bacterial feature making the mattress a cleaner healthier sleeping environment for the sleeper, and great for asthma sufferers. With our in-house technology, the mattress will come perfectly vacuum-packed, rolled, and boxed for the convenience of the customer. We do recommend once you have unpacked the mattress leave it for up to 48 hours so the mattress can re-size to its original.

Great for a starter mattress for kids. Donna. Belfast, GB. Fri Jan 09 2026

Kingsize (5')

This stylish orange wavy Bonnell spring memory foam mattress is great value for money carefully hand-made in the UK. It features a super smooth cool touch top panel cover, keeping the sleeper's body at room temperature for a much cooler night's sleep. The mattress core contains a 13.5 gauge patented ultra max diameter open coil Bonnell spring unit which distributes weight and pressure over a large area improving comfort and support. With a layer of high-quality layer of open cell Memory Foam which allows your body to shape and adapt to the mattress supporting the sleeper's body to relieve pressure from building for an excellent night’s sleep. Featuring an 18cm deep base with a stylish orange quilted border, with hypoallergenic and anti-dust mite fillings. This mattress is single-sided so no need to flip it, just rotate it every couple of months, to keep it in pristine condition. With the new innovative technology, the mattress will be vacuum-packed, rolled, and boxed for hassle-free delivery.

It's ok, it's fair for the price. Better than what we had and that was the main thing. It's pretty firm and comfortable and the new smell goes quickly. I'd definitely buy another of I needed another mattress. The only downfall in buying from Wayfair is the delivery company (DHL) unfortunately, delivered our mattress to a completely different location but marked it as delivered with my name as recipient still.. Kane. Hampshire. Tue Nov 11 2025

Kingsize (5')

This mattress has been specifically designed and created for our unique contract range these are exclusively for businesses, hotels, guest houses, halls of residences, landlords, student accommodations & universities. These mattresses exceed all the required standards whilst providing both long-term value and unprecedented levels of comfort. This mattress has a Nautilus fabric for both the top and bottom panel making this specific mattress dual-sided. The border of the mattress has a modern blue nautilus fabric with vents on either side to allow the constant flow of air to pass through the mattress keeping the sleeper cool, and fresh, and the mattress odor free for a healthier, cleaner sleeping environment. The fabric has water-resistant material that prevents any liquid from damaging the mattress instantly. Constructed with 5 individual comfort layers when combined they provide exceptional levels of comfort. This nautilus source 5 mattress features a European-engineered 13.5 gauge open coil spring unit, which offers pressure relief, distributing the weight evenly across the mattress to give medium-soft comfort so the sleeper can enjoy a comfortable night’s sleep. The mattress has been designed specifically with source 5 tape edging and corner pads, consisting of a 7.25” border (approximately 18cm), and comes with source 5 corner pads. This mattress is fully compliant with all UK & EU legislation source 5 (medium hazard) and is suitable to be used in care homes, hotels, hostels, residential establishments, and student accommodations, which require a higher fire-retardant certificate, and normal households. With our new in-house technology, we are now able to vacuum pack, roll, and box your mattress making it a quicker and environmentally friendly way to deliver your mattress to your front door. Making it a much more convenient way for you the customer to maneuver and open your new mattress. We recommend that you do not leave the mattress rolled and boxed for more than 7 days after receipt. Vacuum-packed mattresses do not have side supports, therefore prolonged sitting on the edge of the mattress is not recommended.

Great mattress does the job as intended. Previously had one of these last a long time good product.. Tee. West Bromwich, GB. Sat Feb 24 2024

Kingsize (5')

This open coil spring system mattress with a super-soft quilted hexagon-designed vapor pod top panel cover, the cover will cushion the sleeper's body keeping it cool throughout the night. A quilted grey breathable border allows the flow of air to pass through the mattress keeping it cool, fresh, and odor-free. The mattress contains 8 comfort layers with a 13.5 gauge wide diameter open coil Bonnell spring unit which distributes the weight & pressure over a large area improving your sleep comfort. The mattress also has a layer of high-quality open-cell cool blue memory foam which allows your body to shape and shape with the mattress giving better overall support and comfort for a great night’s sleep as well as keeping you cool. The mattress has been designed with anti-bacterial and hypoallergenic features and provides anti-dust mite properties to assist allergy sufferers. The mattress is vacuum packed, rolled & boxed which allows for convenient delivery, unpacking, and set up in your bedroom.

Omg I lay on it to try I fell asleep for 4 hours it was so cosy I havent slept like that cosy in months. Samantha. Sutton, GB. Tue Apr 05 2022

Kingsize (5')

This unique grey-bordered mattress has been designed with a micro-quilted cool touch large onion design top panel. The mattress has been carefully constructed with a Bonnell open coil spring unit to allow the weight of the sleeper to be distributed evenly across a wide surface, providing a much more comfortable and medium-soft feel. Allowing the sleeper to wake up each day feeling relaxed and revitalized. Consisting of 8 layers of comfort, this mattress has two layers of next-generation NASA-inspired high-quality visco-elastic memory foam. The foam will shape the contours of your body and will relieve pressure from the building, great for anatomical support. The fabric of the mattress has been designed to be breathable with hypoallergenic and anti-dust mite fillings for a cleaner healthier sleeping environment. This will keep your mattress odor-free. With our new in-house technology your mattress will come vacuum packed, rolled boxed, and delivered directly to your door, making it much more environmentally friendly. We recommend that you do not leave the mattress rolled and boxed for more than 7 days after receipt. Vacuum-packed mattresses do not have side supports, therefore prolonged sitting on the edge of the mattress is not recommended.

Quite soft but comfortable. Great value for the price paid!. Nadia. London, GB. Thu Nov 18 2021

Kingsize (5')

The Seaqual mattress has been carefully designed with deep comfort fillings, with a traditional European-engineered Bonnell spring unit and a layer of high-quality next-generation viscoelastic memory fibre foam. The Seaqual fabric has been re-invented and constructed by using plastic waste from our oceans and reconstituted in a modern blue and white hexagon vapour pod top panel. The fabric has been designed to be breathable keeping the sleeper and the mattress cool & fresh like the ocean, for a comfortable night's sleep. The mattress has a generous layer of Memory Fibre Foam which allows the sleeper to enjoy a much more relaxing night’s sleep giving the bounce back on the mattress and providing a medium soft comfort. This mattress will be delivered vacuum-packed, rolled and boxed. We recommend leaving the mattress once it has been unpackaged for 24 to 48 hours to allow it to expand back to its original size.

Best mattress Ive brought because it is quite confortable and cool.. Anonymous. Tue Apr 26 2022