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 Bliss 800 Pocket Memory Pillow Top Mattress
Was £464.95
RRP £779.99
Sealy Mellbreak Ortho Plus Mattress
Was £609.95
RRP £899.00
Emma Hybrid Premium Mattress
Was £608.74
RRP £681.00
Silentnight Athens 1400 Mirapocket Ortho Mattress
Was £564.95
RRP £690.00
Hypnos Hemsworth Deluxe Mattress
Was £839.95
RRP £1,382.00
Millbrook Wool Luxury 4000 Pocket Mattress
Was £1,119.95
RRP £1,805.95
Sealy Waltham Latex Advantage Mattress
Was £844.95
RRP £1,219.00
SleepSoul Heaven 1000 Pocket Gel Mattress
Was £434.95
RRP £629.99
Silentnight Rio Miracoil Cushion Top Mattress
Was £489.95
RRP £595.00
Simba Inter Comfort Hybrid 1500 Pocket Mattress
Was £879.95
RRP £899.00
Harrison Spinks Quilted Fusion 4000 Pocket Mattress
Was £1,499.95
RRP £2,169.00
Emma Hybrid Thermosync Mattress
Was £768.74
RRP £1,599.00
Hypnos Marlow Ortho Deluxe Mattress
Was £1,464.95
RRP £2,662.00
Silentnight Seoul Miracoil Memory Mattress
Was £519.95
RRP £651.00
Mlily Bamboo+ Superb Memory 2500 Pocket Mattress
Was £614.95
RRP £1,195.00
Harrison Spinks Luxury Essential 750 Pocket Mattress
Was £874.95
RRP £1,139.00
Simba Earth Escape 4800 Wool Mattress
Was £1,869.95
RRP £1,999.00
Silentnight Mirapocket 1000 Geltex Pillow Top Mattress
Was £779.95
RRP £984.00
Memory Zone 3000 Pocket Mattress
Was £859.95
RRP £1,109.00
Horizon Odyssey 800 Pocket Memory Mattress
Was £469.95
RRP £910.00
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
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Sunday: Closed
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