Deal verdict
Both have been cheaper. It's worth waiting on either.
The Dormeo Fresh Deluxe Memory Foam Mattress costs £390 less today.
Mattress Online
Worth waiting
£1,129 Double
It's been cheaper. It was £917 on 13 Nov 2026. It's been £1,129 or less for 100% of the 33 days we've tracked.
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Dormeo
Worth waiting
£739 Double · Memory foam
It's been cheaper. It was £359 on 12 Nov 2026. It's been £739 or less for 100% of the 155 days we've tracked.
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| Hypnos Alcester Ortho Extra Mattress | Dormeo Fresh Deluxe Memory Foam Mattress | |
|---|---|---|
| Firmness | Firm | Medium soft |
| Warranty | 10 years | 15 years |
| Mattress type | Not stated | Memory foam |
| Sizes | Single, Small Double, Double, EU Double, King, EU King, Superking, Emperor, Superking Zip and Link | Single, Double, King, Super King |
Specs are the figures each retailer publishes. Prices are for the size shown above.