Experience premium support and perfect sleep with our new Serta® Quilted Perfect Sleeper X™ collection. Our 5 ZoneResponse™ Design is comprised of Perfect Conform™ Memory Foam paired with 5-zoned coils for full-body alignment. Sleep comfortably cool throughout the night with cooling technology and graphite-infused memory foam designed to redistribute heat away from your body. A quilted top offers a classic feel and added layer of plush foam. Extraordinary sleep is possible, with Serta® Quilted Perfect Sleeper X™.
The Knox Plush features 5 support zones designed for full-body spinal alignment with a combination of supportive coils and Perfect Conform™ Memory Foam. Plus, a classic quilted feel that makes for night after night of perfect sleep. Memory foam and cooling upgrades available.

Cradles you in cushiony softness; ideal for side sleepers.
5 ZoneResponse™ Design - combines coils and contouring memory foam full-body spinal alignment designed to offer comfort and support where you need it most.
Perfect Conform™ Memory Foam - Premium, graphite-infused memory foam designed to provide targeted pressure relief and redistribute heat away from the body.
Cool Twist® Gel Memory Foam - cooling gel swirled into premium memory foam offers enhanced airflow, heat dissipation, and contouring comfort. Available in select models.
Your new mattress may initially feel firmer than expected. Please allow up to 60 days to acclimate to your new mattress as it naturally adjusts to contour, comfort, and support you best.
100% USA Assembled, CertiPUR-US Certified.
CertiPUR-US® certified means our foam was tested for and is free from harmful chemicals and gasses.
Compatible with most frames, including: traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable frames.
Premium memory foam is temperature-sensitive; it may feel firmer in cooler temperatures and softer in warmer ones. For your preferred comfort, please allow several hours for your memory foam mattress to adjust to the room’s temperature.

Take your rest to the next level with the Baselogic™ Bronze 13" Adjustable Base with 9" solid legs that puts comfort and relaxation at your fingertips. Adjust your position for tailored comfort to help relieve pressure points for enhanced relaxation. Customizable settings contour to your body to make sleeping, waking, and lounging even more enjoyable. Effortless Convenience with a wireless remote means you never have to leave the bed. The base fits into most bed frames. Includes a 10 year limited manufactuer warranty. Maximum weight limit: 1200lbs.

Mattress Top Type: Tight Top
Mattress Type: Hybrid
Included: 1 Mattress(es), 1 Base Unit(s)
Features: Full Support, Cushioning Layer, Foam Layer, Wrapped Coils, Cooling Layer
Additional Information: Suitable for Adjustable Bed Frames, Relieves Pressure Points, Eliminates Motion Transfer, Conforms To Body
Coil Count: 647 Coils
Manufacturer Warranty: 10 Year Limited
Bed Size: Twin Xl
Measurements: 38 Width/Inches, 26.75 Height/Inches, 80 Length/Inches
Maximum Weight Limit: 850 Lbs
Base Material: 70% Polyurethane, 30% Metal
Comfort Type: Plush
Mattress + Box Spring Measurements: 80 Length/Inches, 38 Width/Inches, 26.75 Height/Inches
Care: Spot Clean
Certifications And Listings: Certipur-Us Certified
Mattress Height: 13.75"
Country of Origin: Made in US


Set includes mattress plus box spring/foundation/base. King and Cal. King mattress sets feature 2-piece side-by-side foundations for easier navigation in tight spaces.