As the final part of our Chaise Lounge Revamp, we’re going to walk you through all the necessary steps to sew a new removable backrest cushion for your chaise lounge. This method can be modified for any chaise lounge or sofa backrest cushion. The backrest cushion that we’ll be working on is filled with polyester fiberfill instead of foam, but the principles are the same for one stuffed with foam. Let’s begin!