Dyonery Extra Firm Mattress King Size 12 Inch with Ice Silk Cover,Extra Firm Bamboo Bed-Mattress for Back Pain, CertiPUR-US, in USA

1. Premium 4-Layer Cooling Memory Foam Mattress Enjoy a supportive sleep experience with our fiberglass-free mattress-in-a-box, featuring a cool ice silk cover and 4-layer construction: cooling gel + green tea + bamboo memory foam. Designed for back pain relief, it offers adjustable firmness (Firm to Extra Firm) and meets CertiPUR-US standards, proudly made in the USA for premium quality. 2. Double-Sided Firmness for Custom Support Switch effortlessly between Firm (balanced comfort) and Extra Firm (maximum support) by flipping the mattress—no topper needed. Ideal for couples with differing preferences or those seeking adaptive spinal alignment, this design prevents sagging while enhancing breathability for all-night comfort. 3. Upgraded Fiberglass-Free Ice Silk Cover Stay cool in summer with the cool-touch ice silk side—smooth, breathable, and perfect for hot sleepers. The reversible stylish grey fabric side offers soft, skin-friendly comfort, letting you switch aesthetics to match your mood. Both sides are zippered for easy removal and hypoallergenic for family safety. 4. Certified Safe & Odor-Free Construction Crafted with CertiPUR-US certified foam and OEKO-TEX standard 100 fabric, this mattress is free of harmful chemicals, fiberglass, and unpleasant odors—unlike low-quality alternatives. The luxurious 4-layer design ensures healthy, deep sleep for you, your kids, and even pregnant family members. 5. 365-Night Trial + Lifetime Warranty Risk-free sleep awaits: enjoy a full year to test your mattress, backed by a lifetime warranty. Arriving compressed in a box, it’s easy to transport and setup—simply unpack, expand (24-48 hours), and use on floors, sofas, or any bed frame. Perfect for upgrading bedrooms, living rooms, or guest spaces.