Sometimes when my wife accidentally falls asleep too close to me in bed, I have so little room to sleep that it hurts my back. I’ve been suffering serious lower back pain these days for this reason to the point it’s debilitating. But if I wake her up to give me more room, there is the issue of gezel shayna ("stealing sleep"). I don’t like having my own sleep disturbed, and I don’t want to do to someone else something I don’t like being done to me (as the Torah can be summarized in one line). What is the appropriate way to deal with this situation?