I can sleep through anything, literally anything. Tornado, Sandstorm, Wife doing stuff to me, vacuuming in the room, Train, Bug bites...... I haven't had this problem, yet, and sleep on my stomach all the time. Been 6 months and the wife playing with them hurts, and going down stairs hurts, sleeping on them, nothing. Of course they are about an A cup right now so don't take up a lot of space.