Good time to buy

Hypnos Cawthorne Extra Firm Mattress £654 is a genuine low.

Today is the only day in the 116 days we've tracked it's been this cheap.

Where today's price sits

£654Lowest we've recorded, the same as today

£759Highest we've recorded, 13 Nov 2026

Prices before 14 Nov 2026 come from archived copies of Mattress Online's page, roughly one a month, so short sales in that period may not show.

Today's price is the lowest we've recorded.

We'll email you when the Double gets cheaper. One email per drop, and every email has a link to stop.

Price history for the past 116 days

£600£650£700£750£800 £654

Price “Was” price With a code

Prices before 14 Nov 2026 come from archived copies of the page, roughly one a month. From 14 Nov 2026 we check every hour.

When does the Hypnos Cawthorne Extra Firm Mattress usually go on sale?

It showed a "was" price on 0 of the 1 days we've checked it every hour.

What's the cheapest price ever recorded for the Hypnos Cawthorne Extra Firm Mattress?

£654 for the Double, on 14 Nov 2026. We've tracked it since 22 Jul 2026.

How often do you check the price?

Every hour, for every size. We keep every change, which is how we know what it usually costs.