Sleep King Memory Foam Mattress
Our best selling king memory foam mattress, offering great value for money while providing ultimate comfort.
Featuring our luxury 50kg/m3 memory foam and our 30kg/m3 high density support layer CNC cut with our unique tear airflow system to ensure that you get a brilliant night’s sleep without overheating. The combination of temperature sensitive memory foam and a high density support layer means our mattresses closely conform to your unique shape and helps cradle your body and avoid unnecessary pressure on your body and muscles. Resulting in a deeper more restful sleep.
Unlike a coil spring mattress, there are no pressure points in places like your shoulders, hips, and knees. Your back is better supported because the mattress conforms to your back and helps it hold its natural shape.
Overall Firmness – Soft / Medium
Mattress Size: King
Dimensions: 5ft x 6ft 6″ (150cm x 200cm)
Total Depth: 21cm
Memory Foam Depth: 5cm
Memory Foam Grade: 50kg/m3 Premium
Firmness: Soft / Medium
Availability: Next Day
Latest Foam Cut To Size & Product Reviews
The best mattress ever! I’ve had my mattress for a week and I am amazed at the quality of my sleep since I got it. I haven’t slept this well in years . It is soft enveloping and so cool. What a bargain. Thank you!
I always buy memory foam mattress don't look at bed shops you won't get the quality and it will cost you more and take longer to come 😁
tremendous value and comfort - Excellent prompt delivery within 24 hours. Super comfortable, modest in price but tremendous value.
Much better than the first mattress I bought online, had to send that one back. Finally, I can get a decent night's rest.
Simply wonderful :) x
Such a good mattress worth every penny.
Amazing mattress, so happy.
Incredible. Never owned a better mattress.
Very very happy. I had the whole mattress to myself this weekend and I'm secretly wishing I have the same next weekend
I've been long overdue a new mattress and wow! Why did I put this off so long?
What a wonderful mattress and a wonderful price to go with it.
much more supportive than the mattress I used to have.
Looking forward to tonight on this mattress
Wonderful! If you're in two minds, buy it. Highly recommended.
I didn't think it was possible to fall in love with a mattress.
i thought they'd delivered the wrong thing first as it came rolled up should have seen my face lol
Fast delivery and good quality, hope it lasts.
If you love sleep you'll love this mattress.
Can't recommend this mattress more highly to people.
This is an impressive mattress considering how little it costs in comparison to some of the big name brands. Just goes to show!
This is a well-made mattress and the price doesn't reflect it. I would honestly have paid more and still been happy.
Arrived rolled up, which made it easier to move it upstairs. Great mattress.
slept like a baby, thanks GB
Wow, I'm really impressed with how comfortable this mattress is, I've had one of the best nights sleep in ages.
Fantastic quality mattress, had one of the best nights sleep I've had in years.
Lovely and comfortable.
My goodness this wasn't what I was expecting, after going from bed shop to bed shop I was a little dubious to order online but so please that I did. fantastic work.
Quick and easy delivery thanks
I'm amazed by how much more comfortable foam is rather than old sprung mattresses
very comfortable and quick delivery
best night sleep I've had in years
really comfortable - nice job GB foam
This mattress is top quality, it's so much better than my old sprung one
Haven't tried it yet but delivery was fast and service was great.
Exceeded my expectations. Glad I went for this one in the end, saved myself a fair few quid.
super comfortable, I would recommend this mattress to friends.
Considering buying a couple of singles for the kids after buying this one.
Superb nice and comfy
Fits our sleigh bed. Arrived super quick as well. Very happy with the purchase!
Perfect. Sleeping much better since owning this. Thank you
Fitted our bed frame perfectly. Bought a few of your mattresses for a project at work and thought I would treat myself. Was definitely worth the money.
The best mattress I've ever owned without a doubt.
Fantastic memory foam mattress. I'd go as far as to say this is the best mattress I've ever owned.
Very high quality for the price. This is the first memory foam mattress I've owned and so far I am impressed with the results.
Brilliant mattress for the price, I've been sleeping so much better since having it.
Much better than I thought it would be. Was a little firm at first but is beginning to break in
Why Choose GB Foam For Your Foam Cut To Size?
Our factory is equipped with the latest CNC cutting technology and throughout the years we have employed the most talented freehand foam cutters in the industry. Many members of the team have worked for the company for several decades and their attention to detail and quality control is something that only comes with years of knowledge and experience.
We have many customers who started with us in 1976 and are still working with us today, which we like to think reflects on our vision to be the most dynamic foam converter in our industry. For us no job is too big or too small. We offer the same level of service and delivery whether you are a retail customer ordering one piece of foam from home, or a large manufacturer ordering daily.
40 Years In BUsiness
GB Foam have been offering foam cut to size from our factory since 1976.
Hand Made In THe UK
We employ the most talented freehand foam cutters in the industry.
ISO 9001 Quality
Our team work to the ISO 9001 quality standards to guarantee only the best
Super Fast Delivery
All orders placed before 11:00am will be despatched for next working day delivery
5 Year Guarantee
Our foam comes with a 5 year guarantee against faults in manufacture.
Our entire range of foam exceed UK safety and flammability standards.