I bought a duvet and two pillows at the beginning of the year on recommendation from a work colleague. Being a certain age I have terrible problems sleeping and am always extremely hot, even with windows open and a fan constantly running. At first the items I had bought didn't seem to make much difference to my sleep pattern, but after discussing this again my friend advised me to get a mattress topper, she said I needed to have the wool top and bottom to make a difference. I bought the topper a few weeks ago and it has made such a difference. I now sleep for at least 5-6 hours each night without waking up (this is fantastic for me) and don't need the fan at all!!! Overall this is an excellent product that I would now not be without.