Deal verdict
Too early to call.
We need 30 days of prices for the Sealy Alston Gel Advantage Pillow Top Mattress before judging the deal.
Mattress Online
Not enough history yet
£554 Double
£554 today. We started tracking this on 14 Nov 2026. A verdict needs 30 days of prices.
The chart appears once we have more than one day of prices. We started tracking this on 14 Nov 2026.
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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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| Sealy Alston Gel Advantage Pillow Top Mattress | Dorma Natural 2000 Pocket Sprung Wool Mattress | |
|---|---|---|
| Firmness | Medium | Not stated |
| Warranty | 5 years | 20 years |
| Mattress type | Not stated | Pocket sprung |
| Sizes | Single, Small Double, Double, King, Superking, 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.