Deal verdict
Both have been cheaper. It's worth waiting on either.
The Dormeo Fresh Deluxe Memory Foam Mattress costs £120 less today.
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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Mattress Online
Worth waiting
£859 Double · Pocket sprung
It's been cheaper. It was £728 on 13 Nov 2026. It's been £859 or less for 100% of the 33 days we've tracked.
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| Dormeo Fresh Deluxe Memory Foam Mattress | Harrison Spinks Collingham 3250 Pocket Mattress | |
|---|---|---|
| Firmness | Medium soft | Medium |
| Mattress type | Memory foam | Pocket sprung |
| Warranty | 15 years | 5 years |
| Sizes | Single, Double, King, Super King | Single, Double, King, Super King, Emperor |
Specs are the figures each retailer publishes. Prices are for the size shown above.