I blame this on his father.
Now, sometimes he might be a little groggy at first, but he is always ready. For something. This is very unlike his sister (and mother), who needs a few minutes of burrowing under the covers and general grumbling before she is able to alight.
The other day he took a rare, but much-needed nap. I popped open his door at 2:45 p.m. to give him ample time to wake up before going to get Mary Clare at school. When I came back into his room, he was standing in bed, waiting for me.
"Hi, mama."
"Hi, Charlie."
"Do you want to see me wiggle?"
"Hi, Charlie."
"Do you want to see me wiggle?"
"Of course."
And he wiggled away.