This ‘bed-in-a-box’ mattress gave our tester her best sleep in years and it’s hundreds of pounds cheaper than some of its rivals

• The best mattresses: sleep better with our six rigorously tested picks

I’ve been reviewing mattresses for about four years and suffering from broken sleep for three times as long. The right mattress can markedly improve sleep quality, but switching between them so regularly seemed to feed my insomnia. Then I met the Otty Original Hybrid and I was blissfully dead to the world.

The Original Hybrid is the flagship “bed-in-a-box” mattress from UK company Otty Sleep. It combines thousands of pocket springs with multiple layers of memory foam – some soft, some thumpingly firm – to offer robust ergonomic support without sacrificing comfort. At less than £680 for a double, it’s among the cheapest bed-in-a-box hybrids (meaning a combination of memory foam and springs) you can buy, and after testing several I’m confident that it’s the best buy.