Firm Open Coil 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.

Love this mattress. Already ordered 3. Muhammad. Coity Bridgend, GB. Sun Aug 02 2026

Kingsize (5')

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.

Getting used to a hard mattress very deep. More comfortable with mattress topper and mattress protector!. Anonymous. Mon Aug 03 2026

Kingsize (5')

Wake up refreshed and ready to go! The Silentnight Essentials Value Bonnell Mattress is built to support you from head to toe with its firm feel and open-coil spring system—323 springs working together to reduce partner disturbance so you both enjoy a peaceful night’s sleep. The soft damask cover with a quilted finish adds instant comfort, and soft hypoallergenic fillings evenly distributes your weight for gentle pressure relief and refreshing rest. Designed to last, this double-sided Microquilt mattress can be flipped and rotated regularly to keep it feeling fresh and supportive for longer. And with convenient rolled-up delivery, it’s easy to move through tight spaces or upstairs without the hassle of heavy lifting. Comfort, convenience, and long-lasting support—all delivered straight to your door. Ready to sleep better?

Comfy, decent quality and seems like it will last well. Easy to set up, and would recommend for anyone that requires a bit more support for their sleep.. Anonymous. Thu Aug 20 2026

Kingsize (5')

The Super Ortho Mattress is designed for sleepers who prefer an extra firm feel with superior orthopaedic support. Built with a 12.5g orthopaedic spring system, a compressed polyester layer, and a 25mm reflex foam layer, this mattress ensures optimal spinal alignment and pressure relief, reducing back discomfort for a restful sleep. Reflex foam is naturally hypoallergenic, offering a healthy weight distribution to promote better posture and support. Finished with a hand-tufted damask cover and a beautifully hand-stitched grey chenille border, this mattress combines comfort with a modern contemporary design. Strategically placed air vents encourage airflow, maintaining a cool and breathable sleep surface, while stitched handles allow for easy rotation to extend durability. Ideal for those who require firm back support, the Super Ortho Mattress delivers a high level of comfort, durability, and elegant craftsmanship, making it a perfect choice for a restorative night’s sleep.

Feels lovely and firm hopefully get a good night sleep tonight. Anonymous. Fri Aug 21 2026

Kingsize (5')

Wake up refreshed and ready to go! The Silentnight Essentials Value Bonnell Mattress is built to support you from head to toe with its firm feel and open-coil spring system—323 springs working together to reduce partner disturbance so you both enjoy a peaceful night’s sleep. The soft damask cover with a quilted finish adds instant comfort, and soft hypoallergenic fillings evenly distributes your weight for gentle pressure relief and refreshing rest. Designed to last, this double-sided Microquilt mattress can be flipped and rotated regularly to keep it feeling fresh and supportive for longer. Comfort, convenience, and long-lasting support—all delivered straight to your door. Ready to sleep better?

I love it so comfy. Anonymous. Fri Aug 21 2026

Kingsize (5')

Boasting a traditional open coil spring system, this Silentnight Open Coil Ortho mattress offers comfort and support through the night. With sumptuous layers of foam fillings, this mattress is finished with hand tufting to provide a firmer feel and offer longer-lasting back support. Featuring a smooth damask mattress cover for added comfort. This mattress is designed for those who sleep on their stomach or back. Made in the UK by the UK's most trusted bed brand Silentnight.

Very comfy great for my back delivered quickly and conveniently. Alison. Mon Aug 18 2025

Kingsize (5')

Great mattress, so comfortable, highly recommend. Leila Mc. GB. Thu Sep 28 2023

Kingsize (5')

Our luxurious handmade open-coil orthopaedic memory mattress is the epitome of luxury. Made by our skilled craftsmen we have been manufacturing quality mattresses since 2005 so we're sure you'll love this one!

Have ordered 2 for my sons, they are very happy as it guves good suppoet for a bad back. Im 5hinking to order for my bed as well. Olena. Tue Jul 02 2024

Kingsize (5')

Enjoy exceptional support and a restful sleep with this mattress, featuring hypoallergenic fibre fillings for a healthier night’s rest. The 12.5 gauge open coil spring unit offers reliable, firm support, while the extra firm tension is perfect for those who prefer a sturdier feel. With a 26cm depth, this double-sided mattress can be easily flipped and rotated to ensure long-lasting comfort and durability.

Kingsize (5')

Royale is designed for those who prefer firm support. This contains twice tempered spring, covered in modern hand fabric. These inherently seek to Shape the body shape of any person resting on them. They are readily capable of maintaining the spine's double S shape and help prevent localized pressure points from building against critical parts of the body. Beds of this type provide superior characteristics and rest the entire body.

They were beautiful and perfect for my son's Christmas to display his beloved football tops. Anonymous. Glasgow, GB. Thu Nov 09 2023