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 Heaven 1000 Pocket Gel Mattress
Was £434.95
RRP £584.99
Silentnight Ortho Dream Star Miracoil Mattress
Was £408.70
RRP £548.00
Sleepeezee Luxury 1400 Pocket Mattress
Was £769.95
RRP £999.00
Silentnight 800 Mirapocket Mattress
Was £454.95
RRP £531.00
Sealy Steeple Ortho Plus Mattress
Was £689.95
RRP £1,019.00
Hypnos Hemsworth Luxury Mattress
Was £914.95
RRP £1,563.00
SleepSoul Space 4000 Pocket Orthopaedic Gel Mattress
Was £659.95
RRP £1,079.99
Sealy Posturepedic Elevate Blackwood Mattress
Was £1,379.95
RRP £2,229.00
SleepSoul Celest 2000 Pocket Pillow Top Mattress
Was £599.95
RRP £1,424.99
Emma Diamond Hybrid Mattress
Was £1,199.00
RRP £1,749.00
Silentnight UltraGel 2000 Mirapocket Mattress
Was £1,199.95
RRP £1,429.00
Hypnos Marlow Ortho Deluxe Mattress
Was £1,464.95
RRP £2,742.00
Millbrook Wool Luxury 1500 Pocket Pillow Top Mattress
Was £899.95
RRP £1,503.77
Gainsborough Mayfair 1000 Pocket Ultra Firm Mattress
Was £664.95
RRP £699.00
Harrison Spinks Luxury Essential 750 Pocket Mattress
Was £874.95
RRP £1,139.00
Harrison Spinks Alwoodley 9750 Pocket Mattress
Was £2,159.95
RRP £3,199.00
Relyon Leano Wool 1000 Pocket Mattress
Was £679.95
RRP £899.00
Silentnight Lift Replenish 2000 Pocket Medium-Soft Mattress
Was £1,134.95
RRP £1,498.00
Emma Helix Hybrid Mattress
Was £1,109.00
RRP £1,619.00
Silentnight Miracoil Pillow Top Mattress
Was £385.70
RRP £531.00
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.
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