You can say DynastyMattress is an honest mattress manufacturer and find how much density every Dynasty memory foam mattress is in the product details. Many manufactures including big boys are always secretive about the memory foam density and reluctant to tell what density of memory foam the mattress is using. DynastyMattress NEW Luxury Grand 15-Inch mattress is using 5.3lb memory foam as the contouring layer and 1.8lb density foam as support base. It has a stunning price, about 1/10 the price of the name brand. DynastyMattress 15–inch offers everything you are looking for: the best price, luxurious comfort and support, and back pain relief. These days, gel foam becomes very common and popular in memory foam mattress industry. But this mattress insists on regular memory foam, which brings negative effects on comfortable temperature. 120 day free trial seems just a promotional stunt.
As far as adjustable bed sleep systems go this combination of a Legget and Platt base with DynastyMattress memory foam mattresses appears to be a winner. It is not too expensive and reviews are absolutely top notch. If you are looking for an adjustable bed then you should read more about this split-king sleep system.