Firmness
Firm
Type
Open Coil Spring
Depth (cm)
Number of Layers
Trial Period (nights)
60
Warranty (years)
Price Range
£1,342 to £2,325
Best Sleeping Position(s)
Certifications
Assessed from the specification published by Mattress Man, captured September 2026, and from regular price comparison across our UK retail partners.
Choose the Decadence if a firm feel is what you're after. Firmer mattresses tend to suit back and front sleepers, and heavier bodies that need more pushback to keep the spine level. The mattress uses Sealy's AlignSupport spring system, though the listing doesn't explain the construction layer by layer, which is frustrating at this price. If you buy through Mattressman, they list free next day delivery, with a handling time of 0 to 1 days and transit of 1 to 3 days, plus a 60-night trial. Those are Mattressman's own terms, so check them before you order elsewhere, as other shops may offer something different.
Key Features & what's inside
Awaiting up to date specifications. Please check back later.
Who's it NOT for?
Lightweight side sleepers are the obvious mismatch: a firm surface can press into the shoulder and hip rather than letting them settle in, which often means a sore morning. It's also a stretch if you're on a tighter budget, with prices starting at £1,342.15. If you like a plush, sink-in feel, look elsewhere.
Sealy Decadence Mattress
Is the Sealy Decadence mattress firm or soft?
It's listed as firm. In practice that means you'll lie on top of the mattress rather than sinking into it, with a supportive, stable feel. Firm mattresses generally suit back and front sleepers best, while lightweight side sleepers may find the surface a little unyielding around the shoulder and hip.
What sizes does the Sealy Decadence come in?
It's available in UK Single, UK Double, UK King and UK Super King, with prices ranging from £1,342 to £2,325 depending on the size you choose.
Does the Sealy Decadence come with a trial period?
Mattressman lists a 60-night trial on this mattress. That's the retailer's own offer rather than a Sealy guarantee, so if you buy from a different shop the terms may differ. Always check the trial and returns policy with your chosen retailer before ordering.
How quickly can the Sealy Decadence be delivered?
Mattressman lists free next day delivery, with a handling time of 0 to 1 days and transit of 1 to 3 days. These are Mattressman's delivery terms, so timings and costs may be different if you buy from another retailer.
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