Overview
Stearns and Foster Stearns and Foster Foundation
- Built to anchor your mattress for the long haul
- Solid surface keeps your mattress from bowing or sagging
- High-grade wood frame with durable steel grid support
- Upholstered cover pairs cleanly with any bedroom setup
- Protects your mattress warranty from day one
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In Stock
Overview
Stearns & Foster Stearns & Foster Foundation · Twin XL
The Stearns & Foster Foundation is a flat foundation built for sleepers who want their mattress to perform exactly the way it was designed to. Engineered to replace a traditional box spring, it delivers a rigid, non-flexing surface that holds the full weight of the mattress and two sleepers without any give. Because Stearns & Foster mattresses are engineered to rest on a solid base, pairing this foundation with your mattress is also the surest way to keep the manufacturer's warranty fully intact. The cover is upholstered in a polyester cotton blend that sits cleanly inside any standard bed frame. If you have questions about height options or frame compatibility, the sleep specialists at Mancini's Sleepworld are happy to walk you through it in person.
COMFORT AND FEEL: Firm, stationary base that transfers zero flex directly into the mattress above.
SIZE: This Twin XL sized foundation is built for single sleepers, taller adults, and dorm or college bedroom setups where extra length matters.
BEST SLEEP MATCH: Pairs with any Stearns & Foster mattress regardless of firmness. The solid, non-spring surface protects the feel you chose, keeping support consistent night after night.
BEST FOR: Ideal for sleepers replacing a worn box spring, anyone protecting a new Stearns & Foster warranty, or setups where a rigid base is required.
CONSTRUCTION SPECIFICATIONS: The frame is built from high-grade wood with a durable steel grid support structure underneath. The cover is a polyester cotton blend upholstered to coordinate with Stearns & Foster mattresses. The solid surface provides zero flex, so nothing interferes with how your mattress feels from the first night forward.
SETUP AND COMPATIBILITY: Delivered flat with professional in-home setup included. Fits standard bed frames and works alongside platform bases. Not compatible with traditional coil box springs.
NOT A FIT FOR: Adjustable base users who need an articulating surface. Also not suited for sleepers who want the added height of a traditional box spring without a frame.
YOUR SLEEP, BACKED BY US
At Mancini's Sleepworld, every mattress purchase comes with a 120-night comfort guarantee and our Best Price Guarantee. Add a premium mattress protector at the time of purchase and your guarantee extends to a full 365 nights. Free next-day delivery with professional in-home setup is included, and flexible financing is available. Come try this foundation alongside your mattress in any Mancini's Sleepworld showroom before you buy.
Features
Stearns and Foster Stearns and Foster Foundation
Features
- SKU: SEA-SF-3XB-22
- MPN: 63048931
- GTIN: 748369625235
- Brand: Stearns and Foster
- Collection: Stearns and Foster
- Type: Foundations
- Mattress In A Box: No
- Height: 9
- Length: 79
- Width: 38
- Shipping Height: 9
- Shipping Width: 79
- Shipping Length: 38
- Warranty: 10 Year Limited
- Weight Capacity: 350
- Cover Material: Polyester cotton blend
- Support System: Durable Steel Grid