Deal verdict
Too early to call.
We need 30 days of prices for the Jay-Be Flex Ultra-Firm Open Coil Spring Mattress before judging the deal.
Mattress Next Day
Good time to buy
£363 Double
£363 is a genuine low. Today is the only day in the 64 days we've tracked it's been this cheap.
Checked
Happy Beds
Not enough history yet
£339 Double · Open coil
Shown as reduced from £469
£339 today. We started tracking this on 13 Nov 2026. Its verdict is due in 27 days, once we have 30 days of prices. The lowest so far is £319.
Checked
| Dormeo Octasmart Premium Deluxe Mattress | Jay-Be Flex Ultra-Firm Open Coil Spring Mattress | |
|---|---|---|
| Firmness | Soft | Extra firm |
| Warranty | 18 years | 5 years |
| Mattress type | Not stated | Open coil |
| Sizes | Size not stated, Single, Double, King | Single, Small Double, Double, King |
Specs are the figures each retailer publishes. Prices are for the size shown above.