A great night’s sleep starts with your mattress foundation. The Sealy Stablesupport Flat Foundation, Twin XL, Low Profile offers consistent support from corner to corner and end to end. You can build a comfortable and cozy refuge in your bedroom and spend every night on a supportive base. The flat finish has no bumps and using a flat foundation is beneficial for the life of your mattress. Sleep in comfort and support for good nights and better mornings. Product Details: • Low profile won’t raise your bed too high • Suitable for foam or innerspring mattresses • Sized to fully support a Twin XL mattress Dimensions: • 38”W x 79”D x 5”H