Sleep

How can something that sleeps so much and semi-peacefully cause SO much sleep deprivation?! 

Maybe it's because when he is awake and its dark outside he can't seem to find the internal button that allows him to burp, fart, etc.

Maybe it's because his crying wakes up his sister and then he promptly falls asleep, so then I'm dealing with her; and as soon as she is back asleep, he decides its time to eat again and then we repeat the "can't find the internal button" scenario. 

Maybe it's because when he sleeps and it's light outside his sister IS awake, so that whole "sleep when the baby sleeps" advice goes out the window. 

Whatever the reason... he is too cute and precious to get mad at even if I can blame him. So I will go on sleep deprived! :)