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Sleep King Memory Foam Mattress

£ 249.99

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 36kg/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 – Medium / Firm

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: Medium / Firm
Availability: Next Day

Latest Sleep King Memory Foam Mattress Reviews

  • 5 out of 5
    Grace Mellor

    Perfect. Sleeping much better since owning this. Thank you

  • 5 out of 5
    Adam Kelley

    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.

  • 5 out of 5
    Oscar Hayes

    The best mattress I've ever owned without a doubt.

  • 5 out of 5
    Ethan Swift

    Fantastic memory foam mattress. I'd go as far as to say this is the best mattress I've ever owned.

  • 5 out of 5
    Liam Wade

    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.

  • 5 out of 5
    David Hill

    Brilliant mattress for the price, I've been sleeping so much better since having it.

  • 4 out of 5
    Sarah Butler

    Much better than I thought it would be. Was a little firm at first but is beginning to break in

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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.

GB Foam Celebrating 40 Years in Business
40 Years In BUsiness

GB Foam have been offering foam cut to size from our factory since 1976.

Foam Made In The UK
Hand Made In THe UK

We employ the most talented freehand foam cutters in the industry.

Foam Made In The UK
ISO 9001 Quality

Our team work to the ISO 9001 quality standards to guarantee only the best

Super Fast Foam Delivery
Super Fast Delivery

All orders placed before 11:30am will be despatched for next working day delivery

5 Year Foam Guarantee
5 Year Guarantee

Our foam comes with a 5 year guarantee against faults in manufacture.

Flame Retardant Foam
Flame Retardant

Our entire range of foam exceed UK safety and flammability standards.

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