Drift sleep what can i say. Perfect company to deal with. If you suffer from over heating in your sleep then this is the mattress for you. I have tried everything to bring my temperature down during sleep from Egyptian cotton to Bamboo bedding, all the different types of duvet and so on.. This mattress is perfect for over heating and is uber comfortable. Unfortunately due to a back issue i have had to return the mattress to Drift.. They spent ages with me on the phone going through all different types of mattress to help me find my perfect match. I don't know many companies that offer Drift sleep's level of customer services even pointing me to one of their competitors as a possible solution to my back issue. In my case i think i will need a taylormade mattress at great expense. Its a real shame as the Drift mattress is so so comfortable and cool to sleep on. They promptly arranged a collection at a convenient time to me. 2 delivery chaps arrived bang on time and took the mattress away. Perfect company with a fantastic product can't recommend enough. Thanks Drift sleep :)