Helix’s USP is that it makes a mattress to suit every body type and sleeping style. The Helix Twilight is a firm mattress for side sleepers — which, on paper, sounds like a bit of a dichotomy.

Helix Sleep has been spring cleaning and the result is a fresher mattress line-up — denser foams, plusher covers and a promise of better sleep overall. You can save ...

AH, amphipathic helix; ANKHD1, ankyrin repeat and KH domain-containing protein 1; Arf, ADP ribosylation factor; ArfGAP1, ADPribosylation factor GTPase-activating protein 1; Atg, autophagy-related ...