i think it depends on the kind of day you're having. if your lo has been just crazy, or is sick, then i'd be more inclined to let him sleep.
that being said, 10 minutes isn't all that bad. if he was well & happy, personally i'd get him up by no later than then, just to make sure he got all the calories he needed to eat during the day.
my 2 cents. :wink: