Ottomanson 9" Hybrid Twin Mattress - Rock Hard Feel - Made in USA - Individually Pocketed Coils & CertiPUR-US Foam - Fiberglass-Free - Bed in a Box

For those who want true firmness—not fluff—the 9-Inch Firm Hybrid Mattress is engineered to offer uncompromising support with a no-nonsense design. It’s firm enough to feel like sleeping on a rock—but smartly built to promote spinal alignment, pressure relief, and better posture over time. Proudly made in the USA, this hybrid mattress combines traditional innerspring coils with dense foam layers for durability, responsiveness, and minimal motion transfer—making it a solid choice for shared bedrooms or apartment living. The 9-inch profile is especially suited for trundle beds, bunk beds, platform bases, or smaller rooms where space is at a premium. Shipped in a compact bed-in-a-box, setup is simple: unroll, let it expand, and get ready to rest on a mattress built for comfort, support, and long-term value. Whether you're shopping for a guest bed, college apartment, or your primary sleep surface, this mattress delivers a no-frills, health-forward solution that works.