King Size Mattresses 5ft

Luxuriate in the sumptuous comfort of a king size mattress. Offering an outstanding level of support as well as plenty of space to stretch out, our range of king size mattresses is fit for royalty. They're crafted by top brands so you can rest assured they're of the highest possible quality.

What are the dimensions of king size mattresses

The standard king size mattress measures 150 cm by 200 cm (5 ft wide by 6 ft 6 in long). Offering generous space and exceptional comfort, it’s a popular choice for couples who appreciate a little extra room to relax without disturbing one another. A king size also provides families with young children ample space to enjoy those cherished weekend mornings together. Each sleeper benefits from almost the same width as a twin size mattress, ensuring a truly restful night’s sleep.

What firmness level should I choose for a king size mattress

• Soft: A soft king size mattress is an excellent choice for side sleepers, but this depends on your body weight, height and build. ‘Soft’ means different things for different body types. It provides gentle cushioning around the hips and shoulders. If you’re a side sleeper, you could support your lower back by investing in a body pillow to reduce lower back pain. If you’re after that dreamy, cloud-like feel at bedtime, a soft mattresses could be the perfect match.
• Medium: These mattresses deliver comfort and support at the same time. They are well-suited to most body types and ideal for back or side sleepers. A medium king mattress might be the match for couples who toss and turn during the night.
• Firm: Front and back sleepers will benefit from the extra support of a firm king mattress. If you have a larger build and need better spinal alignment, this could be the right choice for a restful sleep.
• Extra firm: If you need maximum support and a mattress that can offer the best spine alignment, then extra firm king mattresses are the way to go. If you have a heavier build, like to sleep on your back or have sore joints, you might benefit the most from a firmer mattress.

Want to try before you buy? Pop into one of our stores to get a feel for your new mattress. Plus, our experts are here to answer any questions.

What types of king mattresses can I choose from

Pocket sprung

The design of a pocket sprung mattress allows the individually wrapped springs to respond independently to your movements, enhancing comfort and reducing motion transfer. The best for couples sharing a bed.

Memory foam

If you want a mattress that gently contours to your body’s shape each night, then a memory foam mattress is a great choice. As you rest, the mattress eases pressure on key stress points, helping prevent discomfort caused by overly soft or firm surfaces.

Natural fillings

These mattresses come with layers of breathable wool and cotton. If you want a king size mattress with hypoallergenic properties, check out this option.

Combined or hybrid mattresses

Hybrid mattresses bring together the best of both worlds - classic spring support from pocket or open coils, paired with the plush comfort and pressure-relieving benefits of a top layer made from memory foam, latex, or gel. This is another top choice for couples sharing a bed.

Open coil or traditional springs

Open coil spring mattresses are a practical and cost-effective choice if you enjoy the firm, familiar feel of traditional springs. Their design provides consistent support across the surface for that extra stability. Keep in mind the springs are interconnected, so you will get a ‘bouncier’ feel than the pocket sprung version.

Gel mattresses

If you want a cooler sleep environment and a mattress that adapts to your body’s contour, then take a look at our king size gel mattresses. The cooling gel mattresses feature a top layer of advanced gel foam, designed to deliver extra breathability and regulate temperature, especially during summer nights.

Latex mattresses

Another great option for hot sleepers, latex king mattresses are hypoallergenic, cooling and super comfortable.

How much bigger is a king size mattress compared to a queen mattress

King mattresses are 150cm by 200cm, while queen mattresses typically measure 120cm x 190cm. Both options are spacious, but the queen is more compact and easier to move. The king, with its larger surface area, is ideal for couples and makes a bold statement paired with a king bed in spacious bedrooms.

What are the best mattress brands

Our wide range of king size mattresses comes from top brands such as Silentnight, TEMPUR, Sealy and many more. We handpicked the best mattresses and the best brands, so you can rest assured you’ll be getting excellent comfort and restful nights no matter the choice you make. If you have a favourite brand, we probably have it in our collection. So, make sure you browse the full range.

Can I get a matching bed for my king size mattress

Yes, you can pair your new king mattress with a new king bed. Choose one of our beautifully upholstered beds or gorgeously-crafted wooden beds. Need extra storage? Then check out the king size ottoman beds in our collection too. You could even couple your brand-new king-size mattress with a high-tech TV bed, with built in storage and hydraulic assist access - the epitome of relaxation and luxury.

Can I get a bigger size mattress

Yes! If you’re looking for maximum space and have room to spare, our super-king mattresses are also available. These 6ft mattresses are perfect for large bedrooms and couples who want plenty of room to stretch out. If kids like to come into your bed at night, then this is the perfect size for the entire family.

Can I get a smaller size mattress

Yes! For luxurious comfort in a more compact size, our double mattresses are a great fit as well. Their 4ft6 size will give you space and but won’t overpower a smaller bedroom. Make sure you match the size of your bed to the size of your mattress to get the full comfort and support the mattress is designed to offer.

Will a king mattress fit my bedroom

Bringing a king size mattress into your home takes a little extra planning. Think about how much leftover space you will have for comfortable movement around the room. Don’t forget to take into consideration the size of your current furniture along with any future pieces you plan to add to your décor. Pay attention especially to doors and drawers. Will you still be able to easily open the door to your bedroom and to your wardrobe? What about your chest of drawers? A king mattress is designed to pair perfectly with a king bed. If the frame fits comfortably in your bedroom, it’s the ideal match. Avoid using king mattresses for smaller frames as it can lead to a lack of proper support and potential safety risks, including tipping over.

How to make a king size mattress even more comfortable

Looking to add an extra touch of luxury to your king size mattress? Try one of our mattress toppers that are designed to offer additional comfort. Plus, you’ll be getting the maximum longevity out of your mattress as the topper helps protect it as well.

How to style a king size mattress

Browse our beautiful selection of bed frames to pair with your king size mattress - some of our bedroom ranges match bedsteads with coordinating chests of drawers or dressing tables. Or if you're looking for a space-saving solution, explore our beautiful king size ottoman beds. And what better way to complement your new king mattress and finish your bed than with luxurious bedding? Searching for more mattresses? Browse the rest of our fabulous collection here.