Serta iSeries NXG 3500 Hybrid Firm Mattress DropShipOnly Support System: Contouring coils with

Support System: Contouring coils with motion reduction

Dual layers of high-density responsive foam for added durability and support

Its medium feel offers the ideal balance of cushioning and stability

including low lopped

Dimensions: 79

Serta iSeries NXG 3500 Hybrid Firm Mattress DropShipOnly Support System: Contouring coils withFirm feel. Zoned support. Advanced cooling. The Serta iSeries NXG 3500 Hybrid Firm mattress delivers a more robust, supportive sleep experience with enhanced height and advanced hybrid performance. Designed with a series of benefits for the sleep you want, it provides immediate cooling, deep pressure relief, and reinforced support where your body needs it most. Its firm feel offers consistent stability, while zoned coils help support proper alignment