My son has his last bottle feed at 9pm...by that time, he is already sleeping or he falls asleep on the bottle. Either way, he finishes his 5oz of milk and sleeps soundly. I never manage to get him to burp when he's sleeping and read on the internet that babies don't need burping if they're asleep. BUT after about an hour or two, he wakes up screaming and squirming and doesn't take his dummy. Then when I pick him up, he sometimes gives a small burp, or sometimes swallows loads like his milk is only just going down. It seems to stress him out loads because his sleep is disturbed. Then it takes me ages to get him back to sleep because he gets all huffy and puffy that he woke up. This has been happening for a couple of months now. Is there anything I could do?