Sleeeeeeep

I truly would like to know how it is that an 8-month-old baby can stay up til all hours, get me up after 7 hours sleep, have a single 40 minute nap during the day, and then repeat the cycle night after night, remaining annoyingly chipper while I get more and more tired. How can an 8 month-old get by on only ~9 hours' sleep a day?

Honestly, every day I think 'He will surely sleep well tonight, he's hardly slept at all today, and he got up early to boot'. And every night I tell myself 'He will surely sleep well tomorrow, he's going to bed at the same time as us, he will NEED a big nap tomorrow!'. And never will it be true more than once in a blue moon- and I mean I could probably count the times it's proved true on one hand

Moreover, where does this enduring optimism of mine come from? Setri has clearly got me beaten, and yet every day I'll believe that tomorrow will be different. Is stupidity and blind optimism a symptom of sleep deprivation? I wish I had half that boy's energy. If he can go through life being powered like the Energizer Bunny, more power to him, I won't begrudge him that even now. Ok, maybe a little bit...