Strong, supportive, and stable, the Sealy Stablesupport Flat Foundation, Twin XL, High Profile keeps your mattress right where you want it. Give yourself a better sleep starting from your foundation. The flat foundation surface that is free of bumps or lumps keeps your mattress consistently supported so you can get a better sleep each and every night. So go on! Get cozy and look forward to those long lazy Saturday mornings just a little more. Product Details: • Suitable for all types of mattresses including foam or innerspring • Sized to fully support a Twin XL mattress • Fits Twin XL bed frames