FOAM WEDGE XL. DOES NOT INCLUDE COVER. This Wedge Bolster Foam (Twin XL 40") could ship separately from other items in your order. This Extra Large Twin firm foam wedge shape insert is perfect for replacing and/or making bolsters for daybeds. Size 5" top x 9" bottom x 12" height x 40" long. We also sell bolster covers, and matching twin XL mattress covers in a variety of fabrics. Please check our inventory. Top Quality. Made in USA.