My son has never slept great at night...however he would occasionally give my husband and I a few 2 hour chunks per night. For the past few nights he has been waking up crying every 30 mins to an hour. I pump/nurse during the day but give formula at night (my full milk supply isn't in yet and my LO is a hungry boy!). When I feed at night my LO usually takes anywhere from 1 to 3 ounces. I feel terrible that he isn't sleeping well and always wakes up upset.....help!