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Expert Recommended Adjustable Base
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Signature comfort. Steady support. Cooling rest you can count on.
As the foundation of the Beautyrest Black® collection, the Series One Medium Innerspring Mattress delivers the signature support and comfort that define this premium line. It offers a just-right blend of softness and stability, with pressure-relieving foams that gently cushion your body and breathable materials that help keep you cool all night. Inside, a responsive coil system adapts to your movements and minimizes motion transfer—so you sleep soundly from dusk to dawn.
Best for back and combination sleepers who want balanced comfort, cooling breathability, and dependable support in a timeless design.
Comfort Level: Medium
Made in the USA
Sleep Style: All Sleepers
Adjustable Base Compatible: Yes
Mattress Type: Innerspring
Benefits: Cooling Sleep Surface, Contouring Pressure Relief, Individualized Support, Motion Isolation
Sustainability: CertiPUR‑US® certified foams
Quilt: A breathable cover with Sleep Climate™ Technology and heat-dissipating TENCEL® fibers for cool, all-night comfort.
Cooling: AirFeel® Foam and AirCool® HD Foam promote airflow and help regulate temperature as you sleep.
Comfort Layers: Layers of plush yet supportive foams provide body-hugging pressure relief and a balanced medium feel.
Support Layers: Built to respond to your body’s movement and limit motion transfer.
Recommended Foundation: Rio 2.0 Adjustable Bed Base | City Mattress
Twin XL Size: 38" W x 80" D x 14.25” H
Mattress Height: 14.25"
10-Year Limited Warranty
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