What age can a puppy go all night?

[buffytwin]

Good morning! Just wondering when you think its okay to leave a puppy all night in its crate without going to the washroom? Our puppy is 10 weeks old and we wake up once in the middle of the night to let him out everynight. He never barks or cries at all, but we set our alarm to automatically let him out. However lastnight neither I or my boyfriend got up when the alarm went off, we accidentally turned it off and both fell back to sleep! In the morning we both asked if the other went, lol... He was fine though, didn't bark or cry once to go, and no mess in his crate, but I just assumed 10 weeks is too young to do that? Although I know its different at night b/c they're sleeping. My friend says he should be fine, but as always I wanted to double check with you guys before I cancel the 2am wake up calls, lol... Thanks!