I love that the perfect sleeper mattress has the ability to use an adjustable foundation or just your traditional foundation. I originally purchased my mattress with a traditional foundation. I enjoyed the thickness of the mattress with my old bed frame, but soon realized that I would like to have height adjustment which the adjustable base will provide. First impression of the mattress is that you can see the quality and attention that has gone into the design of the plush top of the mattress. I have been sleeping more sound and at a more comfortable temp due to the gel/foam layers used in the mattress. I would recommend this mattress to anyone looking for a great hybrid mattress!