Compare Silentnight Medium Firm Miracoil Pillowtop Hybrid Mattress vs Arun Open Coil Spring Semi-Orthopaedic Mattress: price history and specs

Deal verdict

Too early to call.

We need 30 days of prices for the Arun Open Coil Spring Semi-Orthopaedic Mattress before judging the deal.

Dunelm

Silentnight Medium Firm Miracoil Pillowtop Hybrid Mattress

Good time to buy

£174.30 Size not stated

£174.30 is a genuine low. It's been this cheap on only 2 of the 187 days we've tracked.

£160£180£200£220£240£260 £174.30

Price “Was” price With a code

See it at Dunelm

Checked 13 Nov 2026, 22:30

Happy Beds

Not enough history yet

£279 Double · Open coil

£279 today. We started tracking this on 13 Nov 2026. A verdict needs 30 days of prices.

£230£240£250£260£270£280£290 £279

Price “Was” price With a code

Checked 14 Nov 2026, 15:16

	Silentnight Medium Firm Miracoil Pillowtop Hybrid Mattress	Arun Open Coil Spring Semi-Orthopaedic Mattress
Mattress type	Not stated	Open coil
Warranty	Not stated	5 years
Sizes	Size not stated	Small Single, Single, Small Double, Double, King, Super King

Specs are the figures each retailer publishes. Prices are for the size shown above.