He slept so much last night!

My little boy must be growing like mad right now. He has an appetite the size of an adult, and he slept 15 hours last night. I put him down to bed at 6:15 pm, and he slept in until 9:15 this morning. And then he ate a huge breakfast, and then went back down for a nap at 10:15 and its almost NOON and he's still sleeping. This is crazy! BBC was cancelled this morning due to an across-the-state travel advisory.