http://www.onpurple.com/#a_aid=purplevid Many people complain that memory foam is too "warm" this is because it doesn't really breath. The Purple is a multi-layer mattress that solves this with an air chamber suspension on the top of memory foam. The result is that more air circulates around you. This design is great if you get warm when you sleep. If you have night sweats. Or if you (or someone you love/care for) gets bed sores from being in bed so much. The three layer design puts less pressure on any one spot, and that definitely helps if you have circulation problems. It can be a bit "springy" in some cases. Unlike a split system bed, (select comfort or a king size that is made from two twins) you will feel the person next to you move around more than you would on a pure memory foam mattress. If this is a problem you can solve it by peeling back the cloth by unzipping the cover and using a utility knife to create a slit head to foot in just the purple layer of the bed. This likely won't be an issue however unless the difference in weight between the two people is fairly large. This bed ships in a "roll" and you will never get it back in the package, so unpackage it only where you are planning to use it. It is also kind of "limp" so it will make corners that a traditional mattress won't which can be nice if you want a bed at the top of curved or narrow stairs or in an attic space that doesn't have a large enough whole to get up to. (or a loft in a tiny home) These are a great choice for RV's and travel trailers because the purple layer doesn't absorb moisture. A pure memory foam bed can cause small sealed spaces to get a strong mildew scent from the moisture they hold from you over night. Video shows more about what this comes in, and the layers. Learn More at http://www.onpurple.com/#a_aid=purplevid