Super King Size Memory Foam Mattresses

Enjoy high-quality sleep every night with our exceptional range of super king-size memory foam mattresses. To help make your buying decision easier, we've answered some of the most frequently asked questions!

A memory foam super king mattress measures 6’ x 6’6" or 180cm x 200cm, so there's plenty of space for couples to sleep without bumping into each other. For solo sleepers, it also means you get an expanse of room to stretch out and the best sleep every night.

As the largest standard UK mattress size, it’s a good idea to check your bedroom space before purchasing. Find out more about the sizes available with our handy mattress size guide!

Before ordering your mattress, you should consider how this item will fit into your home. The experts at Happy Beds consider a room size of at least 9ft6" x 11ft 6" (2.9m x 3.51m) sufficient to accommodate a standard UK king-size mattress.

One of the biggest concerns with super king-size mattresses is often whether and how it will fit in your room. Take a few minutes to measure your doorways, stairs, and any tight corners to ensure the mattress can navigate through your home to your desired space without any issues. Clearing obstacles ahead of time will also help ensure a smooth delivery.

Our bed measuring guide explains how to tell if our mattresses will fit in your room.

Our super king memory foam mattresses, with their memory foam construction, are perfect for anyone looking for extra support as they sleep. That's because they offer many unique benefits, such as:

• Custom comfort: memory foam uses heat to soften and mould to your body, offering you plenty of customised comfort.
• Pressure relief: great for anyone wanting to wake up feeling refreshed, as it offers plenty of relief from pressure points such as joints and shoulders.
• Correct spinal alignment: there's no need to worry about sleeping in the wrong position, as memory foam helps to encourage healthy spinal alignment and reduce the risk of aches and pains.
• Plenty of space: the super king-size ensures you have plenty of space to stretch out, even if you're sharing with a partner!

Find out more about all the benefits this mattress type offers with our memory foam mattress guide. Want to find out more about the other types we sell? Our mattress buying guide is the ultimate resource!

Your memory foam mattress super king will last anywhere from six to ten years, depending on how well you maintain it. This will involve cleaning it and rotating it when recommended, which will help increase its lifespan. Taking good care of it will give you plenty of supportive sleep for many years.

Some of the things to keep an eye out for when trying to figure out if it needs to be replaced are:

• It's not returning to its original shape
• It's developing a bad odour
• It's becoming hot when sleeping
• It's starting to sag
• It's not helping with any aches and pains.

For general recommendations, explore our guide on when to change your mattress. Our mattress cleaning guide has plenty of tips to help ensure its longevity.

Our super king memory foam mattresses are available in all our most popular firmness levels, including:

• Soft
• Soft-medium
• Medium
• Medium-firm
• Firm

Memory foam is also often categorised by density. This describes how much foam is packed into a cubic foot, impacting how the mattress feels. High-density foam contains more material, which makes the mattress heavier and more supportive. Low-density foam, often found in soft mattresses, tends to compress and recover quickly.

Choosing the best super king-size memory foam mattress involves finding features that match your sleeping position and needs. Here are some key factors to consider:

• Firmness level: softer mattresses are generally preferred by side sleepers or those in need of a little extra comfort at the shoulders, hips, and lower back, while medium-firm to firm mattresses can be great for combination sleepers, back sleepers or front sleepers.
• Material composition: the density of a foam refers to the weight of the foam in kilograms per cubic metre. Generally, the higher the density of the foam, the firmer its support level.
• Body weight and sleep position: heavier sleepers often need firmer, more supportive memory foam to prevent sagging, while lighter sleepers may prefer softer options.
• Temperature regulation: look for technology designed to regulate your body temperature to maintain a comfortable sleep environment.
• Budget: it’s important to find one that delivers great value without stretching your budget. Happy Beds offers a range of affordable options that combine comfort, quality, and support at prices that won’t break the bank.

Give yourself peace of mind that you're not only going to get great sleep with your new mattress, but can also enjoy some of our other benefits, such as:

• Manufacturer's guarantee: Happy Beds offers a 5–year standard guarantee on each super king memory foam mattress, covering any manufacturing defects.
• Super fast delivery: with many of our super king foam mattresses already in stock, we can deliver whenever you'd like with our standard and premium delivery service!
• Pay your way: whether you pay for everything upfront or spread the cost with 0% interest finance from Klarna or PayPal, we've got plenty of ways to pay.
• Simple mattress recycling: do you have an old mattress you need to remove? Take advantage of our fantastic mattress recycling service, and let us take your old one away when we deliver your new one! It's available in the basket now.
• Helpful customer service: any questions you might have are ready to be answered by our knowledgeable team of customer service agents via our live chat, email or phone.