I wasn't sure if this would really work for my chair and a half, but I'm so glad I tried it! My chair is 49 inches wide and has a twin sized bed inside it. I really can't believe this fit. The T cushion is getting squeezed pretty tight but I'm hoping it stretches a bit more in another week. It's only been on a couple hours and I can already tell it'll be fine. I had to buy some fabric screws for the backside, but that may be because mine is a hide-a-bed and there's no place to tuck the extra fabric. Nothing is perfect of course, but this sure comes close. I tried the love seat size first and it was massive. This is tight, but much better. Love love love it!P.S. Once I was able to wrestle it on, the matching oversized ottoman is also a perfect fit!!