After a year in rd we finally found the perfect way to build a mattress otty special combination of memory foam 2000 pocket springs and special cool blue gel creates our most comfortable and durable mattress the 2000 pocket springs support your body as you sleep and thanks to the additional side supports the sleep able surface area of the mattress is increased by up to 25 no more rolling off the edge or figthing to stay on the cool blue memory foam layer on top provides breathability an