Waking up constantly early morning

banderson11

So, every morning for the past week after his early morning feeding I will put him back down to sleep.  He will only sleep for about 30 minutes and he will start crying.  So I rock him back to sleep and put him down and will sleep for another 20 minutes or so.  He continues to do this from 2 or 3 on.  I know he's not hungry because he's just been fed.  Is anybody else dealing with a similar situation?  I have no idea why he is doing it, he falls back asleep pretty quickly, he just doesn't stay asleep.  He is 10 weeks old.