Our analysis of how well a mattress maintains its original shape, height, firmness, and side/back sleeping support after 8 years of simulated use. A measure of how much vibration is transmitted ...

The OTTY Pure mattress is the first in the UK to use an innovative bamboo and charcoal foam. According to OTTY, it's a veritable super-foam, being moisture-wicking, antibacterial, temperature ...

If you've got more to spend, you could invest in its hi-tech sister mattress, the PURE Hybrid, made from bamboo memory foam with charcoal infused layers. Prices for the PURE start at £499.