Duchess 12/14-Inch hybrid memory mattress is designed to combine cooling comfort with supportive pocketed springs. The cover uses a breathable knit fabric, while the gel-infused memory foam layer helps with airflow and body heat dissipation to support a cool sleep experience. With a medium-firm feel (6.5), the mattress is intended to offer adaptable comfort and support for different sleep preferences and positions. Inside, independently encased pocket springs and memory foam work together to balance support and pressure relief. The 5 zoned pocket spring design is intended to promote better alignment, while the memory foam contours to help relieve pressure points and reduce stress on the spine and joints. The mattress is also designed for motion isolation—independent support between springs helps reduce movement interference and noise. The mattress includes reinforced edge support to help prevent that unstable feeling near the edge. It is described as made with CertiPUR-US certified foam and OEKO-TEX certified textile materials, and it ships as a spring mattress in a box. After unpacking, allow 72 hours for the mattress to return to its full shape.