Skip to content
Onlylucky Firm King Mattress, 14 Inch Hybrid King Size Mattress in a Box, Gel Memory Foam & Pocket Springs for Back Pain Relief, Extra Lumbar & Shoulder Support, Motion Isolation, 365-night Trial

Onlylucky Firm King Mattress, 14 Inch Hybrid King Size Mattress in a Box, Gel Memory Foam & Pocket Springs for Back Pain Relief, Extra Lumbar & Shoulder Support, Motion Isolation, 365-night Trial

by Onlylucky
$1,209.98 - $1,209.98
$1,209.98
$1,209.98 - $1,209.98
$1,209.98
  • 【Luxurious Comfort for Sleep】The Onlylucky 14 inch king size mattress is constructed with innovative materials, featuring three layers of functional foam and individually pocketed coils system. The synergistic combination of gel memory foam and pressure relief foam effectively distributes body pressure while conforming to body contours, seamlessly adapting to diverse sleepers. As you sink deeper into the firm king mattress, the high density foam dynamically increases its support density, delivering an exclusive comfort experience.
  • 【Advanced Cooling Technology】The Onlylucky king size memory foam mattress is made with finely woven, breathable fabric that allows air to flow freely, effectively dissipating steam and sweat from the surface to keep your body comfortable and dry all night long. Additionally, the increased foam content with egg-crate foam structure significantly improves internal airflow, preventing heat accumulation and ensuring you stay cool throughout the night.
  • 【7 Zoned Ergonomic Design】Crafted with ergonomic precision, our OnlyLucky king mattress features 7 distinct sleep zones that intuitively cradle your body's natural contours. This intelligent design distributes weight with perfect equilibrium, melting away pressure points while gently aligning your spine into its optimal position. Sleep that feels effortlessly supportive, leaving you waking refreshed, free from aches, and truly recharged.
  • 【Zero Motion Transfer & Undisturbed Sleep】The Onlylucky hybrid king mattress integrates an advanced pocketed coil system with hundreds of individually wrapped springs to prevent tangling. This design achieves zero motion transfer, ensuring undisturbed sleep whether sleeping alone or with a partner. The reinforced edge support maintains stability even when you sit or sleep near the edge, so you don’t have to worry about rolling off.
  • 【Enhanced Comfort and Safety】Onlylucky king bed mattress is crafted with skin-friendly and fiberglass-free materials. All memory foam is CertiPUR-US certified, ensuring a healthy, luxurious sleep space. Enjoy a 365-night trial to test its balanced blend of support and cushioning, with no odor. It's the ideal pick for rest that feels both cozy and secure.
  • 【King Mattress in a Box】Our mattresses come in a box conveniently vacuum-sealed for effortless transportation and setup. After unboxing, please allow 24–72 hours for the mattress to fully revert to its original shape. We also offer customer service and a tailored satisfaction guarantee, ensuring a seamless, satisfying experience from purchase to daily use.