All-position medium comfort: Adaptively supports side, back, and stomach sleepers for “any sleeper, any night” versatility. GlacierTex MAX cooling: 80% more cooling yarns for a consistently cooler sleep surface, ideal for hot sleepers. Pressure relief without sinking: TheraGEL Mineral Memory Foam plus Serene Comfort Foam relieve pressure while resisting that stuck‑in‑the‑bed feel. Zoned 3Z lumbar support: 1,044-coil S‑LUMBAR system lifts your lower back, eases shoulders, and keeps hips aligned for better posture and less morning stiffness. Designed for couples: Edge‑to‑edge coil support, balanced feel, and smooth transition foams help reduce partner disturbance for more restorative sleep together. Sleep in cool, balanced comfort every night with the 13" SlumberCool MAX 3Z Medium mattress. Medium feel delivers the sweet spot between plush and firm, giving side sleepers gentle pressure relief while keeping back and stomach sleepers lifted and aligned. The GlacierTex MAX Cooling Cover uses 80% more cooling yarns so hot sleepers feel instant, lasting cool-to-the-touch relief instead of waking up sweaty or stuck. Underneath, the AirFiber quilt and premium open‑celled foams boost airflow and breathe better than traditional memory foam to help reduce heat build‑up through the night. A 1" TheraGEL Mineral Memory Foam layer infused with silver, copper, and graphite delivers cooler, cleaner comfort while contouring to curves for targeted pressure relief. Next, 2" Serene Comfort Foam provides breathable support with a “no sink, no heat” feel, followed by 2" Slumber Plush Transition Foam that smooths out pressure points so changing positions feels effortless. At the core, the S‑LUMBAR 3Z Pro Support System with 1,044 individually wrapped coils lifts the lumbar curve, allows shoulders to ease in, and keeps hips aligned, all while maximizing airflow and edge‑to‑edge stability for couples. Ideal for mixed-position sleepers, couples with different firmness preferences, and guest rooms, SlumberCool MAX 3Z Medium offers cooling you can feel and balanced comfort you can trust—night after night.