The the effect of the iGravity Collection is described by by Paramount Sleep (PS) as the "iGravity Weightless Sleep Sensation." Paramount Sleep's tagline is "Drift Through Gravity-Defying Sleep Every Night." This is credited to combining the comfort section of "exotic foams" and the spring section of the mattress, called "the iGravity Coil Chamber."
I know the above makes this seem like an innerspring mattress, but it is more like a hybrid. The PS list of features bears this out:
iGravity Weightless Coil
High Density Foam Core
Air Core Topper
iGravity Weightless Coil These are mini-coils (smaller-sized microcoils) with a coil count of 1,000. Microcoils and mini-coils are very short pocket coils, making a layer very flexible and very conforming, providing pressure relief. Among other benefits of mini-coils are resistance to body impressions, motion isolation, and cooling.
Exotic Foams Two kinds of high density foams add to the support in iGravity models. Gel-infused memory foam is used to continue the conformity and cooling of the minicoils. Talalay latex is naturally highly resilient. One retailer also lists memory foam infused with graphite.
High Density Foam Core This high-density soy-based polyurethane support foam is the primary support of iGravity mattresses. The soy content of this foam supports a claim of being environmentally friendly. This foam is there for durable support.
Air Core Topper Paramount Sleep and retailers do not specify the construction of the Air Core Topper. This is described as providing "extra support across the sleeping surface while allowing a more breathable nights sleep." This seems to rule out air bladders while suggesting material constructd to maximize airflow.
Special Appointments This includes the cover of a Paramount Sleep iGravity Collection mattress. The fabric is a super-stretch knit in a waterfall pattern. This is quilted to fire-resistant rayon (infused with silica) and quilting foam.
Paramount Sleep iGravity Collection
Paramount Sleep, 1112 Kingwood Avenue, Norfolk, VA 23502, Phone: 757.855.3321
Hybrid - memory foam, latex, mini-coils, and soy support foam
Soy foam support core, gel memory foam, Talalay latex foam, mini-microcoils, air-core topper
Provided by the support core
Super-stretch knit quilted to foam and rayon-silica fire barrier
About 11 to 13 inches
Platform or adjustable bed
Mini-coils of European design
Keep in sanitary condition, and provide proper foundation