inight Queen Mattress 12 Inch - Firm Hybrid, Heavy-Duty Sag-Resistant Pocket Coils & Nebulign Cooling Foam, for Stomach Sleepers & Heavier Couples, Fiberglass-Free, 365-Night Trial

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FIRM SUPPORT THAT HOLDS ITS GROUND UNDER HEAVIER COMBINED WEIGHT: 630 high-density sag-resistant pocket coils distribute weight evenly across the full queen surface without breaking down over time, even under heavier combined loads. Nebulign cooling foam prevents heat from building up on a firm, dense surface. The flat sleep surface keeps your body in a stable neutral position all night DESIGNED FOR STOMACH SLEEPERS AND HEAVIER COUPLES WHO NEED REAL SUPPORT: Whether you're a stomach sleeper who needs a flat non-sinking surface, a couple with higher combined weight looking for a Queen that won't sag, or someone who's been through too many mattresses that felt firm at first and went soft within a year—this one is built for you A LONG-TERM INVESTMENT FOR YOUR MASTER BEDROOM OR GUEST ROOM: Designed for couples who prioritize durability and firm support, and for guest rooms that need to stay firm after years of use. The 12-inch firm profile provides a stable, hotel-grade sleep surface built to perform for years. Arrives compressed in a box—expands fully within 48–72 hours STOP WAKING UP IN THE MIDDLE OF A SAG: Old Queen sagging in the center and both rolling toward each other? Stomach sleepers waking up with neck and back discomfort from a surface that gives way? Mattress feeling flat and lifeless after just a year of use? High-density pocket coils and reinforced edges hold firm across the entire width, year after year—no more sinking, no more rolling CLEAN, CERTIFIED & BUILT TO LAST: Fiberglass-free construction is safe to open indoors with no hidden risks. CertiPUR-US certified foam, OEKO-TEX fabric, and CFR 1633 fire safety compliance ensure every layer is certified safe and free of harmful chemicals. Backed by a 365-night sleep trial and 10-year warranty for lasting peace of mind