My 7.5 month old recently learned how to pull himself up to standing position in his crib. Needless to say, this is messing with his naps. The problem is that he will eventually fall over and hit his head/face. His face already has several welts from today. What can I do, if anything? Do I have to worry that he might suffer a head/brain injury from all this head-hitting? I assume this is a normal occurrence. When did your LO grow out of this, and what did you do about it?