The Ultimate Twin XL Mattress Topper.

Expand a Bed is a proprietary, patent-pending Twin XL mattress topper that expands the width of any Twin XL mattress by 8” while providing industry-leading quality and comfort. It’s no secret that Twin XL mattresses are inherently cramped and uncomfortable. Expand a Bed is on a mission to change that.
Expand a Bed utilizes a 3-inch deep sleeping surface constructed from industry-leading material to provide unmatched comfort. The base layer of the sleeping surface is constructed out of body-conforming lumbar support foam, designed to be firm enough to alleviate back pain but also forgiving enough to conform to your unique body type. The top layer of the sleeping surface is constructed out of cooling gel memory foam, specifically engineered to dissipate heat and provide a cloud-like feel.


Expand a Bed is wrapped in durable, water-resistant grey fabric for longevity and worry-free spills. Our industry-leading zipper system allows the top cover to be conveniently removed for easy machine washing.
Expand a Bed utilizes a proprietary system of high-density foam side supports and tensioning straps to convert any Twin XL mattress from a 38" width to a 46" width.

