A 12-inch two-sided hybrid mattress. It features a softer side and a firmer side in one mattress, allowing sleepers to choose between two comfort profiles by flipping it. The Raven combines foam comfort layers with individually wrapped coils for pressure relief, airflow, motion isolation, and reinforced support. Construction and materials: Two-sided flippable hybrid construction with a soft side and a firm side. Gel memory foam comfort materials provide cushioning and pressure relief. Support foam layers help transition body weight into the coil system. Individually wrapped pocketed coils provide airflow, motion isolation, and responsive support. Reinforced-edge coil construction improves perimeter support and usable sleep surface. High-density base and support foams stabilize the mattress structure. Non-chemical hydrogenated silica fire barrier when listed on the live product page. Certifications and origin: Assembled for Nest Bedding by Diamond Mattress. Foams are CertiPUR-US® certified when listed on the live product page. Foams are made using domestic and imported materials where applicable. The mattress is a boxed hybrid with foam and coil components. Firmness and sleep fit two usable feels in one mattress: a softer side and a firmer side. The softer side is useful for side sleepers, lighter sleepers, and sleepers wanting more surface cushioning. The firmer side is useful for back sleepers, stomach sleepers, and shoppers who prefer a more supportive surface. The flippable design makes the Raven useful for guest rooms, growing sleepers, and shoppers unsure which firmness they prefer. Sizes and dimensions: Available sizes depend on the current live variant set. Common mattress sizes include Twin, Twin XL, Full, Queen, King, and California King. Use the selected size that matches the bed frame, foundation, or adjustable base. Setup, foundation, and care notes. The mattress ships compressed, folded, and rolled in a box. Allow the mattress time to expand after unboxing before evaluating final comfort and height. Use a supportive foundation, platform bed, slatted base, or adjustable base that provides even support across the mattress. Flip the mattress to change between the soft and firm sleep surfaces. Rotate periodically according to Nest Bedding guidance to support even wear. Use a mattress protector to help guard against spills, stains, and everyday wear. Shipping, trial, and exchange details. Current shipping, trial, return, and warranty terms should be confirmed on the live product page and Nest Bedding policy pages. Doorstep delivery timing may vary by production, carrier, and delivery address. Best uses Sleepers who want two firmness options in one mattress. Guest rooms where different sleepers may use the same bed. Combination sleepers comparing soft and firm surfaces. Shoppers who want hybrid airflow and coil support at an accessible price point. People who prefer a mattress that can be flipped rather than rotated only.