Tempur Sensation 21 Memory Foam Mattress, King Size

Product information

The Tempur Sensation mattress combines the feel of a traditional spring mattress with the supple, moulding qualities of memory foam. The supportive foam layer cradles the body throughout the night while a comforting, quilted surface gives the mattress a soft touch to ensure optimum relaxation.

The specially cut, durable base provides the familiar feel of 'bounce' which you get with a spring mattress, while a well-balanced combination of Tempur materials ensures supreme comfort and support for a restful sleep.

Please note: We recommend you visit one of our shops and try out your mattress choice before ordering online. Not all of our Furniture ranges are on display at every branch. Please phone your nearest John Lewis to check before you visit.

0% APR Representative: If you buy this product in our shops, it's eligible for Interest Free Credit, which is available when you spend £1000 or more on selected home products. Terms and conditions apply: find out more

Extend the life of your new mattress with a durable and breathable mattress protector..

Country of Origin
W150 x L200cm
10 year guarantee
Mattress care Information ‘No turn’ indicates that the mattress should not be turned over or flipped. ‘Rotate regularly’ indicates that the mattress should be rotated from head to toe, but not turned over or flipped.
Rotate regularly
Mattress Size
King Size
Mattress tension
Mattress Type
Memory Foam
Side stitched Information Hand or machined
Spring count
Tick composition
98% Polyester, 2% Elastane
Weight Information Unpackaged weight


  • UK delivery

    Delivery in 5 weeks from our supplier
    Find out more
  • International delivery not available


We want you to be happy with your purchase. If you're not, depending on the type of product, you can make free returns in the UK via John Lewis shops, Royal Mail, Collect+, or MyHermes. If you need to arrange collection of large or heavy items, call us on 03456 049 049. For international returns queries, call us on +44 1698 545 454. Find out more about returns.

You'll find returns information on your delivery note. Unless faulty, we'd like you to make your return within 90 days of purchase. Exceptions apply to certain products - find out more about our refund policy.

Q & As

Mattresses Buying Guide
Mattresses Buying Guide

Choose the right level of support for a better night's sleep


  • 10 year guarantee included

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Available to order