This is my 5th foam matteress and first TnN mattress. At the same time I got another manufactures mattress for my bed. Wish the TnN wss on my bed. The other one is not near a comfortable an smelled bad for 2 weeks. The multi layer idea dosen't work. Wished I had believed it when I read it on the TnN faqs. Save your money, buy a Tuft and Needle. Thanks TnN, Troy