Deal verdict
The Relyon Ortho Superior Extra Firm 1500 Mattress is the better deal today.
It is at a genuine low, while the Dormeo S Plus Evolution Memory Foam Mattress has been cheaper. Both cost £799 today.
Mattress Next Day
Good time to buy
£799 Double
£799 is a genuine low. Today is the only day in the 64 days we've tracked it's been this cheap.
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Dormeo
Worth waiting
£799 Double · Hybrid
It's been cheaper. It was £489 on 12 Nov 2026. It's been £799 or less for 100% of the 33 days we've tracked.
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| Relyon Ortho Superior Extra Firm 1500 Mattress | Dormeo S Plus Evolution Memory Foam Mattress | |
|---|---|---|
| Firmness | Extra firm | Not stated |
| Warranty | 10 years | 15 years |
| Mattress type | Not stated | Hybrid |
| Sizes | Size not stated, Single, Small Double, Double, King, Super King | Single, Double, King, Super King |
Specs are the figures each retailer publishes. Prices are for the size shown above.