I have been given this product as part of a product review through the Chronic Illness Bloggers ( http:// chronicillnessbloggers.com/ chronic-illness-bloggers/ ) network. Although the product was a gift, all opinions in this review remain my own and I was in no way influenced by the company. When I got the email through offering me the opportunity to receive the N:Rem sleep system comfort changing mattress topper ( https://nremsleepsystem.co.uk/topper/ ) to review, I was intrigued. It's an interesting product and concept, and not one I'd come across previously. It's a mattress topper but comes in pieces/tablets with differing levels of softness, so you can put these together in an order that suits you. Each piece is made of reflex foam of varying densities. You get 2 super soft, 1 soft, 1 medium, and 1 firm (easily identified by their colour), which together will cover the length of the bed. The idea is that you can use the softer ones for painful areas, and firmer ones fo...