Deal verdict
Too early to call.
We need 30 days of prices for the Relyon Chelsea 1500 Memory Mattress and the Dormeo S Plus Memory Foam Mattress before judging the deal.
Mattress Next Day
Not enough history yet
£499 Double · Memory foam
£499 today. We started tracking this on 15 Nov 2026. Its verdict is due in 29 days, once we have 30 days of prices.
The chart appears once we have more than one day of prices. We started tracking this on 15 Nov 2026.
Checked
Dormeo
Not enough history yet
£499 Double · Memory foam
£499 today. We started tracking this on 13 Nov 2026. Its verdict is due in 27 days, once we have 30 days of prices.
Checked
| Relyon Chelsea 1500 Memory Mattress | Dormeo S Plus Memory Foam Mattress | |
|---|---|---|
| Firmness | Medium firm | Not stated |
| Mattress type | Memory foam | Memory foam |
| Warranty | 10 years | 15 years |
| Sizes | Size not stated, Single, Double, King, Super King | Single, Double, King, Super King |
Specs are the figures each retailer publishes. Prices are for the size shown above.