Medium Hazard Medium-Firm King Size Mattresses

Kingsize (5')

This mattress is taken from our unique uni contract range – this mattress is designed specifically for commercial business and exclusively for hostels, hotels, halls of residences, students & universities which exceeds all required standards whilst providing both long-term value and superb levels of comfort. The mattress is designed with a Stamford stripe top panel with a 4-inch border (approximately 10cm). This full-foam orthopedic reflex foam mattress provides soft comfort. The reflex foam is made up of thousands of air bubbles that expand and contract when the sleeper lays on the mattress, providing the body molding and bounce-back properties which offers the user a firm yet hugely comfortable sleep experience whilst always returning to its natural shape when not in use. The contract mattress is fully compliant with all UK & EU legislation and regulations including fire tests & regulations source 5 fire retardant (medium hazard). We’ve also created this mattress to be dual-sided with our signature Stamford stripe fabric on both sides allowing the sleeper to either rotate or flip the mattress. This mattress will arrive vacuum-packed, rolled, and boxed. Once the mattress has been unpackaged, we recommend leaving the mattress for 24 to 48 hours to allow it to expand to its original size.

Good mattress. Light, supportive, comfortable, doesn't have a chemical smell like some mattresses do.. Anonymous. St. Leonards-on-sea, GB. Tue Aug 06 2024

Kingsize (5')

Specifically designed to be practical and durable, the medium feel Crosby mattress is ideal for student housing or budget accommodation. This mattress is hand tufted for extra longevity and comes with a hard wearing cover

Kingsize (5')

This mattress is from the contract range - this mattress is designed specifically for commercial business, exclusively for landlords, schools, halls of residences, students & universities which exceeds all required standards. The mattress is constructed with a Stamford stripe top panel with a 7.25” inch border (18cm approximately). The mattress has been designed with no spring and developed with high-density Reflex Foam which is made up of thousands of air bubbles that expand and contract when the sleeper lays on the mattress. This provides both body molding and bounce-back properties which offer the sleeper a firm yet hugely comfortable sleeping experience. The mattress depth is 7” inches approximately 18cm. The fabric has been designed with hypoallergenic and anti-dust mite fillings which keep the mattress odor-free for a cleaner healthier sleeping environment. We’ve also created this mattress with a dual side with our signature Stamford stripe fabric on both sides making it so you’re able to rotate or turn the mattress regularly in order to keep it in pristine condition. It is fully compliant with all UK & EU legislation and regulations including fire tests & regulations Source 5 fire retardant. With our in-house technology, the mattress will be vacuum-packed, rolled, and boxed, we recommend leaving the mattress once it is out of its packaging for 24 to 48 hours to allow the mattress to expand to its original size.

Great quality. Nice and firm. Looks like it will lay. Liudmila. Nottingham, GB. Sun Nov 28 2021

Kingsize (5')

This UK-made mattress features a 1000 pocket spring unit with medium/firm tension, providing optimal support for a restful night’s sleep. Luxury wool and cotton fillings offer a plush yet breathable surface, while the durable cotton cover adds an extra layer of comfort. With a 30cm depth and a double-sided design, it’s built for easy flipping to maintain its shape and performance over time. Certified to Contract Source 5 (BS7177) for safety and quality.

Kingsize (5')

An extremely durable mattress that is completely waterproof but breathable. Our nautilus mattress is a comfortable medium-firm feel that suits most body types and sleeping positions. Perfect for student accommodation and hostels due to its hard-wearing, watertight construction.

Kingsize (5')

This mattress features a 13.5 gauge open coil spring unit for reliable support, combined with hypoallergenic fillings for a healthier, more comfortable sleep. With a 21cm depth and double-sided design, it offers both durability and flexibility. The water-resistant Nautilus cover adds an extra layer of protection, while the mattress is certified to Contract Source 5 (BS7177), meeting high safety and quality standards for both residential and commercial use.

Kingsize (5')

Our Sareer Waldorf Crib 5 compliant mattress is an excellent choice for landlords, student accommodation, spare rooms, and the hospitality industry. It is made in the UK and contains a thick layer of reflex foam which shapes and moulds to the body, ensuring maximum support and comfort. The medium firm feel mattress has a depth of approximately 6inch. Featuring a striped 100% cotton cover, the material is natural, breathable and absorbs moisture, therefore any air trapped between the fabric and your body can circulate keeping you cool as you sleep. This cover is perfectly designed and woven tightly to prevent the possibility of dust mites. All the mattresses within the Sareer Contract range conform to BS7177 ignition source 5 for medium contract use.

Kingsize (5')

This UK-made mattress combines a 1000 pocket spring unit with medium/firm tension for exceptional support and comfort. Filled with hypoallergenic white fibre fillings and wrapped in a durable cotton cover, it provides a clean, comfortable sleep experience. With a 27cm depth and a double-sided design, it can be easily flipped for long-lasting performance. Certified to Contract Source 5 (BS7177) for safety and quality.

Kingsize (5')

This UK-made mattress combines a 1000 pocket spring unit with medium/firm tension for exceptional support and comfort. Filled with hypoallergenic white fibre fillings and wrapped in a durable cotton cover, it provides a clean, comfortable sleep experience. With a 27cm depth and a double-sided design, it can be easily flipped for long-lasting performance. Certified to Contract Source 5 (BS7177) for safety and quality.

Kingsize (5')

This UK-made mattress combines a 1000 pocket spring unit with medium/firm tension for exceptional support and comfort. Filled with hypoallergenic white fibre fillings and wrapped in a durable cotton cover, it provides a clean, comfortable sleep experience. With a 27cm depth and a double-sided design, it can be easily flipped for long-lasting performance. Certified to Contract Source 5 (BS7177) for safety and quality.

Kingsize (5')

Individual pocket springs: supported by hundreds of quality and stainless individual pocket springs, each sprung works independently to offer all-over and average support to 7 parts of your body (feet, legs, hips, waist, shoulders, neck, head). Excellent shock absorption and resilience, cater to your vertebra well and help adjust and correct your sleeping posture. Support system: The ergonomic design hybrid-pocket memory foam and pocket sprung support system not only provides better support for your body but also can absorb more pressure that comes from your body and the sprung, providing more buffers for your body. Fully relax your muscles, and greatly improve your sleeping quality. Breathable and healthy: designed with hybrid-pocket memory foam, comfortable and breathable, providing good air circulation to let go of body sweat and moisture to keep the body comfortable and dry when sleeping. Back pain relief & motion isolation: the puffy mattress single features a plush, soft surface that leaves you floating on a cloud, and the bottom offers medium-firm mattress support. Perfectly shape your body. Say goodbye to back pain. Plus this hybrid-pocket memory 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 mattress is great for all sleeping positions. Easy shipping & set-up: the mattress is compressed and packaged in a box for shipping, allowing it to easily be delivered to your door and expand to its full lofty shape inside your home. They fit all frames, such as box sprung, floor, slatted base, flat platform or adjustable bed, and hospital bed. "Individual pocket springs".

Great mattress easy to unpack and feels super comfortable. Anonymous. Thu Apr 16 2026

Kingsize (5')

Sleep better, and longer with a gel memory foam mattress from our store. Our mattress is the perfect combination of pocket spring and advanced gel memory foam technology that provides the ultimate comfort and support. Enjoy a deeper, more restful sleep with pressure relief technology and cooling gel memory foam that helps keep you cool while you sleep.

Quick delivery seems very well made and very comfy. Anonymous. Thu May 07 2026

Kingsize (5')

Individual pocket springs: Supported by hundreds of quality and stainless Individual pocket springs, each sprung works independently to offer all-over and average support to 7 parts of your body (feet, legs, hips, waist, shoulders, neck, head). Excellent shock absorption and resilience, cater to your vertebra well and help adjust and correct your sleeping posture. Support system: Ergonomic design hybrid-pocket memory foam and pocket sprung support system not only provides better support for your body but also can absorb more pressure that comes from your body and the sprung, providing more buffers for your body. Fully relax your muscles, and greatly improve your sleeping quality. Breathable and healthy: Design with hybrid-pocket memory foam, comfortable and breathable, providing good air circulation to let go of body sweat and moisture to keep the body comfortable and dry when sleeping. Back pain relief & motion isolation: The puffy mattress Single features a plush, soft surface that leaves you floating on a cloud, and the bottom offers medium-firm mattress support. Perfectly Shape your body. Say goodbye to back pain. Plus this hybrid-pocket memory 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 mattress is great for all sleeping positions. Easy shipping & set-up: The mattress is compressed and packaged in a box for shipping, allowing it to easily be delivered to your door and expand to its full lofty shape inside your home. They fit all frames, such as box sprung, floor, slatted base, flat platform or adjustable bed, and hospital bed.

Soooo comfortable and just the right amount of support . Great value for money and not too heavy!. Helen. Woodmancote Henfield, GB. Thu Apr 16 2026

Kingsize (5')

Fast delivery, super comfy, great quality, very pleased with my purchase. Tracy. Ilkeston, GB. Wed Mar 11 2026

Kingsize (5')

Although I bought it a while ago I've only started sleeping on it. So far it seems very comfortable but it's very heavy.. Brigid. Milton Keynes, GB. Sat Jul 15 2023

Kingsize (5')

With natural healing properties, this mattress helps to ease aches, pains, and discomfort that could cause loss of sleep.

…its only just arrived so I will gave to test it D it looks great! 6 weeks later and unfortunately it is starting to have lumps and bumps..I so much liked this mattress and am very sorry to have to return it! -( …no star. Tara. Scotland. Mon Aug 01 2022

Kingsize (5')

Mattress looks great, was unsure at first ordering it as it says its comes rolled up in a box. but when i got it out of the box and left in to rest and expand it looks great. ordered this for my daughters room, she is over the moon with it and it goes really well with the bed we ordered.. Shah. Northampton, GB. Thu Sep 02 2021

197 x 152 x 20 cm

This mattress is perfect for comfort and storage, in all situations of domestic and commercial use

Kingsize (5')

197 x 152 x 26 cm

Very stylish firm mattress.

Kingsize (5')

Immerse yourself into a deep comfort zone with a 12” deep high standard tufted memory pocket spring mattress

Kingsize (5')

This mattress features a two part construct and a low height factor that will be suitable for any child or adult.