Dyonery 12"Firm Mattress Zoned Memory Foam Mattress for Back Pain, Washable Motion Isolation Fiberglass Free Cover, Cooling Night Sleep, Twin XL

[Firm for Superior Pressure Relief] Designed with a firm feel, this memory foam mattress expertly aligns your spine and distributes body weight to relieve pressure points in the shoulders, hips, and back. It is ideal for side, back, and stomach sleepers. [5 Layered Memorized Support for Every Scenario] Experience the perfect balance of contouring comfort and zoned lumbar support. Premium memory foam cradles your body while ensuring lasting stability. This firm mattress is a versatile choice for master bedrooms, guest rooms, or as a thoughtful gift for family¡ªincluding growing children. [CertiPUR-US & OEKO-TEX Certified Safety] Rest assured on a clean sleep surface. Our mattress is certified by CertiPUR-US for content, emissions, and durability, and by OEKO-TEX Standard 100 for skin-friendly materials. It is fiberglass-free and meets CFR1633 fire safety standards. [Skin-Friendly Comfort] Enjoy immediate comfort from the first night. The breathable, knitted cover is soft to the touch, with no irritating tags or seams. Enhanced perimeter support prevents sagging and increases the usable sleep surface. [Easy Setup Backed By Reliable US Support] Your mattress in a box is easy to set up. Please allow 24-72 hours for full expansion; any temporary scent will dissipate quickly with ventilation. Backed by our U.S.-based customer service available 24/7, we guarantee a prompt resolution for any issues.