Helix Midnight mattress review (2021)
The Helix Midnight is a popular mid-range mattress in a box from online company Helix Sleep. The US brand shuns the one-size fits all philosophy of some of its competitors, instead offering two easy-to-navigate mattress lines: the more affordable Helix range (where the Helix Midnight sits) and the premium Helix Luxe range. There’s also a…