Your home is your castle - so you deserve to sleep like a king or queen with our fantastic range of king size mattresses! Luxuriate and stretch out with all the space you need for a wonderful night's sleep on a king size mattress. Measuring 5' x 6'6" (150 cm x 200 cm), king size mattresses are the perfect size for couples and those looking for more sleeping space.
Of course, the king size mattress mainly suits average or larger bedrooms. But that shouldn't stop you from selecting the royalty of a king-sized mattress because of a little thing called space! So long as you have enough space to move around your room comfortably, you can still enjoy a blissful night's sleep and relish the luxurious space and comfort that only a king size mattress can offer.
Choose your king size mattress from our huge range, including Sealy, Rest Assured and Silentnight. There's something for everyone in our collection, which includes memory foam, pocket sprung and orthopaedic king size mattresses.
We're confident you will recognise the value and quality in every one of our carefully selected king size mattresses. Browse our collection today - and if you need any support choosing the perfect mattress for you, look no further than our helpful guides and advice.
All of our king size mattresses come with a discount offer of up to 65% off. Stocked and available now, all our king size mattresses include Free Delivery as standard. Many selected products include a complimentary Two Man Delivery Upgrade to any room of your choice. Order your king size mattress today and start sleeping in style - as early as tomorrow!
The best mattress will give you the ideal levels of comfort and support, depending on your sleeping position, weight and body shape. Our king size mattresses come in five firmness ratings so you can get the support you need.
Choose from our great range of types and firmness and find the perfect mattress for your best night's sleep yet.
Can I buy a cheap king size mattress?
Yes — all our mattresses come with huge savings, with up to 65% off! Simply sort your search by price to find the best value mattress for your budget. We also offer Free Delivery, so you can sleep comfortably for less when you shop with us.
It's good to know that you only need to change your mattress every seven years, so it's worth investing in a high-quality mattress — it can make a huge difference to your sleep.
How to choose the right king size mattress?
Firstly, you should decide on how much support you need and your preferred firmness level. Then, decide on your preferred type of mattress. Finally, look for a mattress that fits your budget and how much you'd like to spend.
If you're getting a new bed too, don't forget to check it fits your bedroom comfortably!