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Foundation Guide

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A mattress foundation, often called a "box spring", is an essential part of your sleep setup. It gives your mattress the stable support it needs, helps promote airflow, and can help it maintain comfort and shape over time.

Couple Sitting on Vail Adjustable Mattress in Bedroom
Couple Sitting on Vail Adjustable Mattress in Bedroom

Flat Foundations

Standard foundation

Standard Box Foundation

Best for those who prefer a traditional bed height, our 9" box foundations provide a stable, supportive base for your mattress. They’re designed for long-lasting durability and help create a solid, even sleep surface.

Low profile foundation

Low Profile Box Foundation

Ideal for a lower bed height and easier access, low profile foundations offer the same dependable support as a standard foundation in a slimmer design. At about 4.5" to 6" tall, they create a cleaner, more modern profile without sacrificing stability.

Mini foundation

Mini Foundation

Mini foundations are a great choice for platform beds, bunk beds, daybeds, and other lower-profile setups. With a slim design of about 1.75" to 2", they add support over slats to help your mattress stay level and maintain its shape.

Bed Frames

Smart bed base

Foldable Platform Frame

A foldable platform frame supports your mattress directly, so a separate foundation or box spring is not needed. It also creates open storage space underneath and offers a simple, space-saving setup.

Metal bed frame

Metal Frame

A metal frame is a sturdy base designed to support your foundation and mattress while elevating the bed to a comfortable height. It’s durable, easy to assemble, and a practical choice for many traditional bedroom setups.

Purple® Premium Smart Adjustable Base
Hibernation Adjustable Base
Ergo Adjustable Bases


Ergo or adjustable bases let you raise or lower the head and foot of your mattress for a more customized position while sleeping, reading, or relaxing. For best results, make sure your mattress is compatible with an adjustable base before pairing the two.