W.M.
I was in your same situation with my daughter (reflux, not necessarily the allergy) at 2 months. More than one doctor recommended cereal in the bottle and it does help. It did not make my daughter obese (a fear of mine). I was also told (several more months later) that warmer bottles are easier on their stomachs and such. You could try that as well. Just be aware that if you do add cereal to his bottle, you need to use tri-cut nipples or nipples meant for thicker liquids. If he feels better, he will be able to sleep longer. :) HTH