A friend gave me a memory foam bed, but foam retains heat, and I was having trouble sleeping.  I read on the internet, that getting a bed platform which allows air to circulate would solve the problem. The platform was reasonably priced  compared to others I saw online, and I had no trouble putting it together, which says a lot, since I have no talent for carpentry or mechanics. Thankfully, it did the trick and my bed is no longer hot :)