Medium Hybrid 12-Inch Smarts Coil Memory Foam Mattress

Experience Balanced Comfort with Our 12-Inch Medium Firm Hybrid Mattress

Discover restful nights with this 12-inch hybrid mattress that expertly combines memory foam with advanced Smarts™ Coil pocket springs. Designed to adapt to your body shape, the innovative coil system delivers targeted pressure relief and maintains proper spinal alignment, making it ideal for back, side, and stomach sleepers. The medium firm feel offers a perfect balance of support and comfort, while the breathable fabric and open-coil construction promote airflow, keeping you cool all night long. Reinforced edge support ensures stability across the entire sleeping surface, preventing sagging and providing secure seating or sleeping near the edges. Delivered conveniently compressed in a box, this king size mattress expands to its full 12-inch height within 48–72 hours, ready to transform your sleep experience. Elevate your relaxation today with a mattress that supports undisturbed, cool, and comfortable sleep.

Key Features

• 12-Inch Medium Firm Hybrid Design: Combines memory foam with Smarts™ Coil springs for balanced comfort.
• Smarts™ Coil Pocket Springs: Adapt to body contours for targeted pressure relief and spinal alignment.
• Reinforced Edge Support: 20% thicker perimeter coils prevent sagging and improve stability.
• Superior Motion Isolation: Reduces motion transfer by 75% for undisturbed sleep.
• Breathable Sleep Surface: Open-coil system and fabric promote airflow to keep you cool.
• King Size Mattress: Spacious dimensions for ultimate sleep freedom.
• Convenient Mattress-in-a-Box: Easy setup with quick expansion in 48–72 hours.
• Supports All Sleep Positions: Designed for back, side, and stomach sleepers alike.

Specifications and Measurements Guide

Dimensions
Type: Hybrid King Mattress
Thickness: 12 inches (30 cm)
Available Sizes: King
Installation Method: Self-Contained

Materials
Mattress Filling: Memory Foam
Coil Type: Smarts Coil Pocket Springs
Fabric: Breathable Sleep Surface
Edge Support: 20% Thicker Perimeter Coils

Technology Features
Smarts Coil Springs: Advanced high-compression coils conforming to body
Motion Isolation Reduction: 75% motion transfer reduction
Pressure Relief: Targeted spinal alignment support
Breathability: Open-coil spring system for natural airflow
Expansion Time: 48-72 hours for full setup
Reinforced Edge Support System: Prevents sagging
Compatible With: Adjustable bases

Manufacturer's Warranty
Length: 10 Years
Note: For added peace of mind, this product includes a manufacturer's warranty, provided directly by the manufacturer and not by Sleep Galleria. Warranty claims are handled with expertise by the manufacturer, subject to their approval and terms. For more details, please review Sleep Galleria's Terms of Service

Free Shipping on All Orders Across the Contiguous U.S.!

• Enjoy free, contactless delivery to your door with fast, reliable shipping across the contiguous U.S. on every order!
• We offer post shipping premium services with room of choice setup and disposal options. Premium service options are offered after adding the item to your cart and are a 3rd party post-delivery service Powered by Loadup. These services can be closely coordinated with your item being shipped for peace of mind and convenience.
• Note: We currently do not ship to Hawaii or Alaska
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Hassle-free returns! Not satisfied? Return most items* within 14 days of receipt for a refund or store credit. Learn more about our Dream Easy® Promise here

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* Massage chairs and adjustable bases are not eligible for return. Mattresses are exchange only.