DD is 2 and is down for 10 hours or so...usually in bed at 8:30-9pm and up at 6:30-7am. She will sleep 2 plus hours in the day too, so I generally get about 12 in 24 hours of sleep out of her.

HTH
I hadn't thought of it that way - DD is the same, she will sleep for two hours during the day, so I do get 12 from 24!

Thanks guys... Guess I will just roll with it!