Need a rock-solid sleep? The Rock Hard Super Firm Mattress delivers, with a tough Ecofoam block; no springs, just pure, firm support from edge to edge. It’s orthopaedic, keeping your whole body in line so you wake up ready to go. Sustainable and dust mite-resistant, it’s a win for you and the planet. Single-sided with sturdy handles, just give it a spin now and then. Made in the UK, it’s built to last with a 10-year guarantee for a no fuss sleep. This is a Single size mattress.