Rhythm is a 13" basic gel infused memory foam mattress that has tree layers, with top gel memory foam, middle responsive DuraTex™ foam layer and bottom foam support core. None of its layers are over 5 lb density, which means it uses medium quality components. 20 years limited warranty.
Novaform® memory foam mattress are available at Costco and other retailers. They are manufactured by Sleep Innovations® based in New Jersey. All their products are manufactured in the US. Products are shipped compressed, vacuum packed.
Quilted Stretch Knit Cover
4" Duratex™ resilient foam - 4 lb density
7" Polyurethane Base Foam- 2 lb. density
20 Years Limited - first 10 years