Choosing the right super king mattress size isn’t just about going bigger it’s about blending comfort, style, and practicality. Offering hotel-like luxury at home, it gives you ample space to relax without disturbing your partner. Popular among UK couples and families, it provides extra room and support.
However, it must fit your bedroom perfectly. Understanding dimensions, comparing sizes, and selecting the right mattress type will help you make an informed choice for a restful sleep and a balanced bedroom layout.
What is a Super King Mattress?
A super king mattress is the largest standard mattress size available in the UK and is designed for people who value maximum sleeping space. It’s perfect for couples, families who co-sleep, or even single sleepers who simply want more room to move during the night.
In the UK, a super king mattress typically measures 180 cm x 200 cm (approx. 6ft x 6ft 6in). This makes it 30 cm wider than a standard king size mattress.
Difference from Other Sizes:
- Double Mattress: 135 cm x 190 cm
- King Mattress: 150 cm x 200 cm
- Super King Mattress: 180 cm x 200 cm
As you can see, the super king size gives you much more room to spread out and sleep comfortably.
Why It’s Popular in the UK
Modern bedrooms are now being designed with more floor space, making it easier to accommodate bigger beds. Families and couples are increasingly choosing super king mattresses for hotel-style luxury and undisturbed sleep at home.
Who Should Buy It
Anyone who shares a bed, has pets or kids who occasionally sleep with them, or simply wants a large sleeping area for maximum comfort.
Benefits of a Super King Size Mattress
A super king mattress size is not just about being bigger it’s about creating a luxurious sleep experience that improves your comfort, health, and lifestyle. In the UK, this size has become the go-to choice for couples and families looking for hotel-style luxury at home.
Maximum Comfort and Space
A super king mattress size UK offers an impressive 180 cm x 200 cm sleeping area, which means both you and your partner can stretch out comfortably without disturbing each other. Whether you’re a restless sleeper, a tall person, or simply love extra space, this mattress gives you the freedom to move without compromise.
Perfect for Couples and Families
Sharing a bed with your partner, kids, or even pets? A super king size mattress is ideal for reducing the “crowded bed” feeling. Everyone can sleep peacefully without bumping elbows or waking each other up during the night.
Improved Sleep Quality
Extra space means less motion transfer. If your partner tosses and turns, you’re less likely to feel it – leading to deeper, more restful sleep. Pairing your mattress with a supportive frame can also improve spinal alignment and overall sleep posture.
Variety of Options Available
From super king hybrid mattress (which combines springs and foam for balanced comfort) to orthopedic or memory foam options (for back support and pressure relief), you’ll find a super king size to match your exact needs. Even extra king size mattresses are available if you want the ultimate in space and luxury.
Adds a Premium Look to Your Bedroom
A large, well-designed bed can transform your bedroom into a master suite. Pair your super king mattress with a stylish bed frame or ottoman storage to maximize both space and aesthetics.
Types of Super King Mattresses Available
Choosing the right super king size mattress is just as important as choosing the size itself. Different types offer different levels of support, comfort, and durability. Here’s a breakdown:
1. Standard Super King Size Bed Mattress
This is the traditional super king mattress size UK, measuring 180 cm x 200 cm. It’s available in multiple firmness levels (soft, medium, firm) to suit different sleeping styles. Perfect for anyone who wants more space without complicated features.
2. Super King Hybrid Mattress
A hybrid mattress combines memory foam with pocket springs to give you the “best of both worlds.” It’s perfect for couples because it minimizes motion transfer while still providing strong support for your spine. If you’re unsure between foam and springs, a super king hybrid mattress is an excellent middle ground.
3. Extra King Size Mattress
For those with an exceptionally large bedroom, an extra king size mattress (usually 200 cm x 200 cm) is the ultimate choice. It’s even bigger than a standard super king and offers unmatched sleeping space – ideal for master suites or luxury homes.
4. Orthopedic and Memory Foam Options
If you suffer from back pain or need specialized support, orthopedic or high-density memory foam mattresses in super king size are a great investment. They promote proper alignment and relieve pressure points for healthier sleep.
5. Storage-Friendly Bed Frames
Many super king size bed frames now come with built-in drawers or ottoman lifts. Pairing your mattress with these frames can help you save space while maintaining a premium look in your bedroom.
How to Measure Your Bedroom for a Super King Mattress
Buying a super king mattress without measuring your room first can lead to problems later. Follow this simple step-by-step guide to make sure your new mattress fits perfectly:
Step 1: Measure Your Bedroom Dimensions
Use a tape measure to check the length and width of your room. Account for furniture, door swings, and walking space. Remember, a standard super king mattress size UK is 180 cm x 200 cm, and the bed frame may add a few extra centimeters.
Step 2: Leave Adequate Walking Space
Ideally, you should have at least 50–60 cm of free space on each side of the bed. This ensures you can move comfortably, fit bedside tables, and open wardrobes without obstruction.
Step 3: Consider Bed Frame and Headboard
Some super king size bed mattresses are larger once placed in a frame. Always factor in the total footprint of the frame, especially if it has a thick headboard or side panels.
Step 4: Think About Storage
If your bedroom is not very large but you still want a super king mattress, choose a frame with built-in drawers or ottoman storage. This maximizes space without sacrificing comfort.
Pro Tip:
If you’re considering an extra king size mattress, make sure your bedroom is big enough to leave space for walking, furniture, and natural flow. Oversized beds can make rooms feel cramped if not planned correctly.
Factors to Consider Before Buying a Super King Mattress
A super king mattress size UK is a big investment – both in terms of cost and space. Before you click “buy now,” there are some key things you should consider:
Room Size and Layout
Measure your bedroom carefully. A super king mattress is large, and you’ll need enough space to move around comfortably. Ideally, leave at least 50–60 cm of walking space on each side of the bed.
Bed Frame Compatibility
Not all frames fit every super king size mattress. Make sure the bed frame you’re buying (or already own) is designed for 180 cm x 200 cm mattresses. For an extra king size mattress (200 cm x 200 cm), you’ll definitely need a special frame.
Mattress Type: Memory Foam, Hybrid, or Orthopedic
Each material offers different benefits. A memory foam super king mattress gives excellent pressure relief, a super king hybrid mattress combines bounce and support, while orthopedic options are great for back pain. Choose according to your sleeping style and health needs.
Budget and Warranty
A super king size mattress is pricier than smaller sizes. Check the warranty and return policy to protect your investment. Many UK brands offer trial periods (100 nights or more) so you can test the mattress at home.
Delivery and Assembly
Large mattresses can be tricky to move. Confirm whether the retailer offers free delivery or setup, especially for heavy super king hybrid mattresses or extra king size mattresses.
Common Mistakes People Make When Buying a Super King Mattress
Even though a super king mattress offers maximum comfort, buyers often make avoidable mistakes. Here’s what you should watch out for:
Not Measuring the Bedroom Properly
People order a super king mattress size UK only to realize later it doesn’t fit their room comfortably. Always measure your room – including doorways, hallways, and staircases – to ensure the mattress can be delivered easily.
Ignoring Mattress Height and Bed Frame
A super king size bed mattress can look taller than expected once on the frame. If your room has low windowsills or sloped ceilings, check the total height (mattress + frame + headboard) before purchasing.
Choosing the Wrong Material for Their Needs
Buying a super king hybrid mattress when you prefer firm foam, or vice versa, can lead to discomfort. Understand your sleeping style first (side, back, stomach) before deciding on the mattress type.
Overlooking Storage Needs
A big bed takes up a lot of space. If your bedroom is limited in storage, look for a super king size bed frame with drawers or ottoman storage to make the most of the area.
Focusing Only on Price
A cheaper mattress may not provide the same support or durability. Think long-term comfort and health a good super king mattress can last 8–10 years with proper care.
Final Thoughts
Finding the perfect super king mattress size for your bedroom means balancing comfort, style, and function. A super king size mattress UK gives you unmatched space and a premium feel, but it’s essential to measure your room, plan your layout, and pick the right mattress type to suit your sleep habits. With proper planning, your new mattress can elevate your sleep experience and turn your bedroom into a true sanctuary.
FAQs
In the UK, a super king mattress measures 180 cm x 200 cm (6ft x 6ft 6in). Always check your bed frame’s specifications before buying to ensure a perfect fit.
Comfort depends on your sleeping style. For pressure relief, go for memory foam. For bounce and support, choose a super king hybrid mattress. For back pain, consider an orthopedic option.
While single and double beds are still common, king size and super king mattresses are rapidly growing in popularity in the UK for couples and families who want more sleeping space.
I’m a professional sleep health and mattress content specialist with extensive experience writing about orthopedic mattresses, back pain relief, pressure-point support, and overall sleep comfort. I collaborate with industry research, sleep studies, and mattress performance insights to deliver accurate, trustworthy, and reader-focused content. I’m known for simplifying complex mattress technologies such as memory foam, motion isolation, and firmness levels, making them easy to understand for everyday buyers. My goal is to help readers choose mattresses that match their lifestyle, sleep posture, and health needs empowering them to achieve deeper, healthier, and pain-free sleep through informed decisions.
