If he's gaining weight, if he's healthy, if his stools/urine is normal and he doesn't seem dehydrated... I don't see why not. Possibly his mother left to get food during the night; so he's used to a gap in his feeding schedule.
Still, wake him a little early--let him sleep for 6-8 hours instead of 10. Even we big humans wake up a bit dehydrated in the morning, so a tiny kitten is even more likely to have problems that way. Just to be safe.
Anyway, it's not like you have to poke him repeatedly to get him to wake. I bet just the smell of KMR, or the touch of the bottle to his little nose will get him right up! No healthy, hungry kitten will pass up a good feeding, asleep or not!