Superking Mattresses
Superking mattresses are the largest size available in the UK - ideal for couples who want maximum space and luxury sleep. Choose from memory foam, natural fillings, or latex in a range of firmness levels. Shop now for free next day delivery, a 60-night trial from top UK brands like Hypnos, Sealy, and Silentnight.
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SleepSoul Luna 1500 Ortho Pillow Top Mattress
Was £684.95
RRP £809.99
Silentnight Vilana Limited Edition Miracoil Mattress
Was £374.95
RRP £440.00
SleepSoul Bliss 800 Pocket Memory Pillow Top Mattress
Was £464.95
RRP £719.99
Sealy Harlow Ortho Plus Mattress
Was £574.95
RRP £729.00
Mlily Bamboo+ Superb Memory 2500 Pocket Mattress
Was £614.95
RRP £1,195.00
SleepSoul Celest 2000 Pocket Pillow Top Mattress
Was £599.95
RRP £1,424.99
Silentnight Seoul Miracoil Memory Mattress
Was £519.95
RRP £651.00
Millbrook Wool Ortho 1000 Pocket Mattress
Was £704.95
RRP £1,113.42
Silentnight UltraGel 1400 Mirapocket Mattress
Was £939.95
RRP £1,129.00
Hypnos Hemsworth Support Mattress
Was £989.95
RRP £1,702.00
SleepSoul Space 3000 Pocket Memory Pillow Top Mattress
Was £589.95
RRP £944.99
Komfi GelMed Ortho Mattress
Was £1,004.95
RRP £1,430.00
Relyon Rufford Memory 1500 Pocket Mattress
Was £1,155.00
RRP £1,649.00
Copper Fresh Envy Supreme Mattress
Was £874.95
RRP £1,199.00
Aspire Natural Cashmere and Silk 3000 Pocket Mattress
Was £614.95
RRP £789.00
Emma Diamond Hybrid Mattress
Was £1,199.00
RRP £1,749.00
Sealy Blakemere Geltex Enhance 1800 Pocket Pillow Top Mattress
Was £1,299.95
RRP £1,899.00
Kaymed Smart Latex 2400 Pillow Top Mattress
Was £1,834.95
RRP £2,475.00
Simba Earth Apex 6700 Cashgora Mattress
Was £2,409.95
RRP £2,599.00
Dunlopillo Kareena 1500 Pocket Latex Mattress
Was £1,426.00
RRP £2,037.00
How big is a superking mattress?
Superking mattresses measure 6' x 6'6" (180cm x 200cm), making them the largest standard UK size.
Also known as a 6 foot mattress or super king size mattress, they’re perfect for couples who want maximum space or anyone craving a truly luxurious sleep surface.
How much does a superking mattress weigh?
Superking mattresses typically weigh between 40kg and 80kg, depending on materials. Dense memory foam, pocket springs or natural fillings like wool and cotton add extra weight to the mattress.
How much does a superking mattress cost?
Superking size mattress prices vary by brand and construction. We’ve got quality options for every budget:
- Budget: from £300 - cheap superking mattresses with everyday comfort
- Mid-range: £500-£1,400 - extra features and enhanced support
- Premium: £1,500-£5,500 - handcrafted comfort from the UK’s best luxury brands
You’ll find superking mattresses from trusted brands like Hypnos, Sealy and TEMPUR - all at competitive prices in our superking mattress sale.
Or, you can check out our superking mattress clearance for more great deals.
How will I get a superking mattress to my bedroom?
Superking mattresses are large and heavy, so we recommend two people to carry them safely.
To make it easier, we offer Premium Delivery for just £20 - and on some superking models, it’s automatically included for free. Our expert delivery teams can bring your mattress directly to the room of your choice, hassle free.
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Why buy from Mattress Online?
Free delivery to most locations
Free next working day delivery on most of our mattresses and beds, or upgrade to weekend delivery.
Free 60-night mattress comfort trial
Test your mattress for 60 nights and if you don't like it, simply swap it.
Old mattress disposal
We can collect and recycle your mattress - saving it from landfill.
Sales Enquiries
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Sunday: 10am - 4pm
Customer Service
Mon-Sat: 9:30am - 5:30pm
Sunday: Closed
