Initially a great mattress, did leave me a little warm but a great night sleep. After 8 months it started to dip lacking a high point in the middle. We had a Dreams "Independent Inspector " come round who said it was within tolerances (measured with nobody laying on the mattress). 3 months later, it was worse so i got another visit from their Inspector. He gave me the exact same answer, i told him that i done levitate over the bed but actually last on it, and when i do it sinks. He replied that he could see that, but here at Dreams, that's not how we measure a faulty mattress! Absolutely disgusting customer service, my next step is to go into our local store and have it out with the Manager for being sold a dodgy product. Steer clear people!!