I think it's very difficult, if not impossible to stretch the sleeve. The one thing you will definitely feel with the sleeve is fast satiation. I am only a month out, but my meals are usually 1/4 of a cup... and they satisfy me. Later, you can eat more, but it will NEVER be what it was. You will still have to change your eating habits, but it's SO much easier with the sleeve. You won't be starving, you won't feel hunger all the time, and it becomes much easier to eat healthy, small, portions.