14 Inches of Support Built for Two — 7-Zone Pocket Coils That Work Across a King Surface: At 14 inches, the inight king mattress layers more comfort and support material than a standard-profile bed, giving the 7-zone pocket coil system more room to deliver targeted pressure relief. Each zone independently supports your back, hips, and shoulders, distributing weight evenly across both sides of the king — so every sleeper wakes up aligned and free from stiffness, no matter how they sleep Nebulign Cooling Foam Across a Full 14-Inch King — No More Sleeping Hot on a Thick Mattress: A 14-inch king mattress covers a large surface and risks trapping more heat — Nebulign cooling foam directly addresses this by actively drawing warmth away from both sleepers simultaneously. The open-cell airflow layer underneath promotes continuous ventilation throughout the mattress, keeping the sleep surface consistently cool and dry even through warm nights Zero Motion Transfer Across a King-Size Surface — One Person Moves, the Other Stays Asleep: Every individually wrapped pocket coil in this 14 inch king mattress responds independently, containing motion exactly where it starts without sending vibration across to the other side. Whether one person gets up during the night or shifts positions repeatedly, the other sleeper stays completely undisturbed — especially important on a larger king where movement can travel further No Fiberglass, CertiPUR-US & OEKO-TEX Certified — A King-Size Investment Built on Safe Materials: Every foam layer is CertiPUR-US and OEKO-TEX certified — free from fiberglass, formaldehyde, heavy metals, and harmful off-gassing chemicals. This king mattress also meets CFR 1633 fire safety standards. A 14-inch king mattress is a significant long-term investment — these certifications ensure what you sleep on every night meets the highest safety standards 14-Inch King Mattress in a Box — Easier Setup Than You'd Expect, 365-Night Trial Included: Despite its 14-inch king size, this mattress ships vacuum-sealed and compressed in a manageable box that fits through standard doorways and up narrow staircases. Unbox, unroll onto any compatible bed frame — platform, slatted, or box spring — and let it fully expand in 48–72 hours, no tools required. Backed by a 365-night trial and a 10-year warranty for complete peace of mind Premium comfort engineered for deeper, quieter sleep. The inight 14″ Hybrid Mattress is our flagship model — combining thicker comfort layers, heavy-duty support coils, and full-depth airflow performance for the most luxurious sleep experience in the lineup. Designed for: - Couples - Sensitive sleepers - Master bedrooms - Users who prefer plush, enveloping comfort - People who want stronger, heavier support The 2″+ comfort cushion creates a plush, pressure-relieving surface, while the reinforced edges and durable coil system maintain structure across years of use. All materials are fiberglass-free, low odor, and CertiPUR-US certified. Ships as a mattress-in-a-box for easy setup.