J.G.
I think the cereal thing is just a myth. A baby sleeps through the night when they are ready! Just keep trying with the cereal and any new food you introduce. My 2 kids did not like everything the first time they tried it. Just remember not to put the cereal in the bottle, she could choke! Just try to be patient with the sleeping thing. It will happen. My son and daughter did not sleep through the night until they were 5 months old! Good luck!