Narcolepsy

Lately Abby has been exhibiting signs of narcolepsy. For example, the other night Alex was bouncing her on his knee while singing a lively rendition of the Bonanza theme song and all of a sudden he looked down and she was dead asleep. Who falls asleep mid-knee-bouncing? It happened again last night while he was bouncing her and watching a Twins game at the computer. Too bad that she doesn't always go to sleep that quietly!