Twin XL Mattress Bases + Foundations29 items starting at $95
Twin XL Foundation
A Twin XL foundation will provide the support your Twin XL mattress needs for maintained comfort, through years of nightly use.
What Is a Twin XL Foundation?
A Twin XL foundation is a supportive base for a Twin XL mattress that helps to uphold your bed’s quality comfort, for years to come.
What Are the Dimensions of a Twin XL Foundation?
A standard Twin Xl foundation measures the same as a Twin XL mattress (though sometimes an inch is added, depending on the manufacturer). This ensures the full coverage and support needed for a Twin Xl mattress to maintain its best condition through years of use.
Which Foundation Is Best for My Mattress?
Absent the manufacturer’s recommendation, the best way to determine which foundation is best for your mattress is by the mattress type. A foam mattress will require a firm foundation with no give, while with an innerspring mattress, a foundation with little give will work just as well as one with none.