Signature Design by Ashley King Size Stack 12 Inch Hybrid Medium Plush Cooling Gel Infused Memory Foam Mattress for Pressure Relief, Fiberglass-Free, Mattress in A Box

Enjoy endless possibilities for restful sleep with the Hybrid Innerspring King Mattress, designed for comfort and support. This ultra-plush mattress combines the traditional feel of a coil system with advanced foam layers for a balanced sleep experience. High-density gel memory foam targets lumbar support, helping relieve pressure on your lower back, while quilt foam adds cushioning for all-night comfort. A power-packed wrapped coil unit with Ashley Edge minimizes motion transfer and enhances stability, making it ideal for couples. High-density base foam provides lasting durability, and the mattress is CertiPur-US certified for peace of mind. Compatible with adjustable bases, this king-size mattress ships conveniently in a box for easy setup—just bring it to your room, unroll, and allow up to 48 hours for full expansion. Perfect for master bedrooms, this hybrid mattress offers the plush feel you love with the support your body needs for restorative sleep. Foundation or box spring sold separately.

• HYBRID MATTRESS: For supportive, dreamy sleeping. This mattress brings it home with layers of padding atop individually power packed innerspring coils with 2 perimeter rows for a better night's rest
• 12" PROFILE: Mattress is designed with gel memory foam, upholstery grade comfort support foam, and 360 individual power packed wrapped coils for maximum lumbar support. Quilt foam gives you that soft, cozy comfort you crave
• QUICK EXPANSION: Mattress is safe to sleep on immediately but can take 72+ hours for any residual odors from packaging to dissipate and for mattress to completely expand based on ambient room temperature, humidity, air pressure & ventilation.
• KING SIZE: Measures 76" W x 79.5" D x 12" H and is compatible with most queen bed frames. Bed foundation, box spring and frame available, sold separately
• ARRIVES IN A BOX: Simply unbox, cut the protective wrap, unroll and watch the mattress expand. Please allow 48 hours for your mattress to fully expand. State recycling fee may apply
• WARRANTY: 10 year limited warranty
• CERTIFIED SAFE MATERIALS: Snooze safely and soundly on a mattress crafted from CertiPUR-US certified materials. Foam has been tested to meet CertiPUR-US rigorous standards for emissions, content and durability