Experience support for more than just your body with the Harmony Lux Collection. Innovative materials work harmoniously to bring you restorative sleep with improved support, advanced motion isolation, and a lush cover made from plastic bottles diverted from the ocean. The Precision Support System™️ offers 40% more support coils compared to Harmony models for even more head-to-toe support across the entire mattress, so you and your partner sleep undisturbed. Up to 100 plastic bottles collected by hand from coastlines and ocean-bound waterways* have been transformed into premium fabric to create a lush, durable sleep surface that helps contribute to cleaner water. Infinicool® Lux technology helps you stay comfortably cool all night with its breathable, moisture-wicking fabric infused with cooling fibers and plant-based cooling technology. Pressure-relieving foams help ease aches and pains while also creating airflow throughout the mattress. Step-ups feature bio-charcoal cooling foam and 2X the memory foam enhanced pressure relief. All models are crafted with a lofty, quilted top, making them perfect for those who prefer a lifted feel and want rejuvenating sleep each and every night.
*Collected from areas within 50km of coastlines. Plastic bottles collected vary by model ranging from 60 to 100.

For the person who likes firm comfort and support with equal weight distribution. Ideal for stomach or back sleepers.
With 40% more coils than Harmony models that offer increased support for any sleep position and undisturbed rest
Infinicool® Lux technology with Breathable, moisture-wicking fabric and plant-based cooling technology deliver advanced cooling for comfortable sleep
Beautyrest® ActiveResponse™ Memory Foam with contouring comfort for your body helps alleviate aches and pains caused by pressure
A lush sleep surface made from up to 100* recycled plastic bottles collected by hand from oceans and within 50 km of coastlines. * Plastic bottles collected vary by model ranging from 60 to 100 

The Serta® BaseLogic Bronze® Adjustable Base is designed to provide a luxurious bedroom experience so you can be comfortable and supported whether you are watching television, catching up on emails or just lounging in bed.

Head Adjustability.
Raise or lower the upper body into the ideal sleep or lounge position
Wired Remote· Control your position with the touch of a button
Foldable· Folds for convenient moving and storage
Zero-Clearance Profile· Compatible with most bed frames and platforms
9” Solid Legs
Base Height 13" 

Mattress Top Type: Tight Top
Mattress Type: Innerspring
Included: 1 Base Unit(s), 1 Mattress(es)
Features: Wrapped Coils, Full Support, Antimicrobial, Cooling Layer, Temperature Regulating, Foam Layer, Cushioning Layer
Additional Information: Eliminates Motion Transfer, Suitable for Adjustable Bed Frames, Relieves Pressure Points, Conforms To Body
Coil Count: 705 Coils
Manufacturer Warranty: 10 Year Limited
Bed Size: Twin Xl
Measurements: 80 Length/Inches, 12.5 Height/Inches, 38 Width/Inches
Maximum Weight Limit: 1000 Lbs
Base Material: 70% Metal, 30% Polyurethane
Comfort Type: Firm
Mattress + Box Spring Measurements: 25.5 Height/Inches, 38 Width/Inches, 80 Length/Inches
Care: Spot Clean
Certifications And Listings: Certipur-Us Certified, Seaqual Technology
Mattress Height: 12.5"
Country of Origin: Made in US


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