I bought the Hyde and sleep mattress as my first hybrid mattress in 2017. It came with 100 day guarantee and is spent £600 on it. From the first night in was uncomfortable and I started experiencing baCK and neck pains. My husband felt the same. But I thought it was the stress of moving and how could such an expensive mattress be causing pain? - I got so busy I missed the 100 night window. over a year and a half on this is by far the worst mattress ever to be made. We have resorted to sleeping on the floor many nights. My husband can barely getting up for work. It is a nightmare mattress. I want Dreams to come and take this mattress away!! I don't even want my money even though it would have been worth it to toss that money into a drain. I have NEVER given such a poor review before. Take heed. Never ever purchase this garbage if you value your health. I've had enough. It will be tossed in the garbage and I am going back to a trusted orthopaedic mattress. I cannot emphasise how much nishu mattress has ruined our sleep and our day for that matter over 1 and half years. I've put up with it because of the price I paid. But really no amount of money is worth screwing up my health for. NEVER AGAIN. EVEN IF I WAS PAID TO SLEEP ON THIS BRAND MATTRESS FLAT OUT. NO.