Actually, I read on-line that when an infant is ready to go to the rice cereal, they won't have the "tongue reflex" anymore. Meaning if something gets into their mouth, they spit it right out. I think I read it on www.askdrsears.com. If I were you, I would wait for her to actually accept the food and stick w/rice or oat cereal for a while. Could be that her bowls aren't quite developed yet and that is why she still has that reflex. Wait until she is 6 months old and try again. As far as the nursing during the night, if you are sure that she is nursing for comfort, then check out some books about getting your baby to sleep through, like the one from Dr. Weissmuth (forget the title). If you think she is hungry though, you may want to try to give her some formula or maybe pump and feed her with the bottle (she won't have to suck as hard on the bottle and may get more into her tummy). According to my ped, it is a myth that a baby will sleep through the night when getting rice cereal in the evening... I don't know. I always nursed my son during the night until he was 11 months old. I did though, wean him from the midnight feeding and just held him and rocked him until he started to sleep through that feeding. (He figured out that he isn't getting any and stopped waking up for the midnight feeding... Good luck to you.