If he wants more milk give it to him. When Bethanie was a month or so old she woke up in her sleep and was sick, so she panicked.. we took her to the doctors on NHS Direct's advise just to check all was fine! we were treated like shit by some of the paediatricians and told that we were overfeeding her because we gave her an ounce or two of milk "too much" when she had been asleep from about 10pm-7am lol.. we just ignored them and carried on what we were doing, now she is a healthy, happy little girl. You know your baby, if you want to give an extra ounce, do it..
Bethanie always woke everyone 1-3 hours, thats normal for a lot of newborn babies I think. Sometimes they just like a cuddle though! remember he has been in your womb all that time, he probably just doesn't want to be alone. Bethanie has always been a really light sleeper and starts crying even now if we put her down when shes asleep, so I feel for you there!
All sounds normal and fine though, so don't worry and im sure it will pass.

oh and btw I forgot to say, a general guide to milk amounts is 2 1/2 oz of milk per lb of babyweight (daily amount).