Your home is your castle - so you deserve to sleep like a king or queen with our fantastic range of king size mattresses! Stretch out with all the space you need for a wonderful night's sleep on a king size mattress. Our affordable range includes memory foam, pocket sprung and orthopaedic options, plus many more. Measuring 5' x 6'6" (150 cm x 200 cm), these mattresses are the perfect size for couples and those looking for more sleeping space.
Get up to 60% off when you shop our in-stock king size mattresses, available now with Free Delivery. Many products include a complimentary Two Man Delivery Upgrade to any room of your choice. Order your discounted king size mattress today and start sleeping in style - as early as tomorrow!
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!
Of course, the king 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. You can really relish the luxurious space and comfort that only a king size mattress can offer.
We're confident you will recognise the value and quality of every one of our carefully selected king mattresses. Browse our collection today - and if you need any support choosing the perfect mattress for you, look no further than our helpful mattress guides.
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, including soft to medium, medium, medium to firm, firm and extra firm.
Choose from our great range of types and firmness and find the perfect mattress for your best night's sleep yet.
What size is a king size mattress?
A king size mattress measures 5 x 6'6" (150 cm x 200 cm). They're perfect if you love to stretch out in a spacious bedroom, ideal for couples and great for families who enjoy having the extra space. For even more luxury, consider our biggest size, the super king mattress.
Can I buy a cheap king size mattress?
Yes - all our mattresses come with huge savings, with up to 60% 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.