My LO is almost 4months and has recently dropped 1 night time feeding. He sleeps from 8-7ish and has naps for a total of 3-4 hours. Sometimes, he clocks more. How much is too much sleep? I find myself waking him often so he doesnt miss his next feeding by more than 1 hr. Also, he has recently started turning over and sprouted his first two teeth. Would this affect sleep?