I used to either put my hand under my breast & lift/elevate it to the right spot for my dd to get the nipple where she needed it, or I'd kind of roll up or down a little so that things were aligned right. (i.e. - lay on your side, but rolled a little toward your back if you need the nipple higher up, or lay on your side, but roll a little toward your stomach if you need the nipple down further.) You may not be able to fall asleep while nursing like this, but at least it is more restful than sitting up.