Dormus Memory Foam MattressThis is a complete foam mattress and does not contain metal springs, the base of the mattress contains firmer reflex foam with softer memory foam at the top. Benefits of this mattress are : Hypoallergenic as it does not contain down or feathers so ideal for allergy sufferers. Motion Transfer Resistance. One of the most useful memory foam mattress benefits is its resistance to motion transfer, this means either sleeper can get in and out of bed without