Deal verdict
The Hypnos Cawthorne Extra Firm Mattress is the better deal today.
It is at a genuine low, while the Dorma Natural 2000 Pocket Sprung Wool Mattress has been cheaper. The Dorma Natural 2000 Pocket Sprung Wool Mattress costs £145 less today.
Mattress Online
Good time to buy
£654 Double
£654 is a genuine low. Today is the only day in the 116 days we've tracked it's been this cheap.
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Dunelm
Worth waiting
£509 Double 4ft 6 · Pocket sprung
It's been cheaper. It was £409 on 13 Nov 2026. It's been £509 or less for 100% of the 89 days we've tracked.
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| Hypnos Cawthorne Extra Firm Mattress | Dorma Natural 2000 Pocket Sprung Wool Mattress | |
|---|---|---|
| Firmness | Extra firm | Not stated |
| Warranty | 5 years | 20 years |
| Mattress type | Not stated | Pocket sprung |
| Sizes | Single, Small Double, Double, King, EU Double, EU King, Superking, Emperor, Superking Zip and Link | Single 3ft, Small Double 4ft, Double 4ft 6, Kingsize 5ft, Super Kingsize 6ft |
Specs are the figures each retailer publishes. Prices are for the size shown above.