9 week old was sleeping on my chest when apnea monitor went off. picked her up off of me - she seemed stiff but then woke right up. what was this?

Periodic breathing: If your baby has not had her2 month's check, this would be a good time to schedule it, to make sure she is medically OK. If she is on apnea monitor for a medical reason, she should have a follow up soon.

Mgt: I agree that she should be seen. She probably had an apneic episode and then woke up. It is better not to sleep with her, particularly if she has a history of apnea. She should sleep on her back and without any extra pillows, bedding surrounding her head, nose and mouth.