My daughter just turned 3. She's still happily in her crib. But she just potty trained and wakes me up (dry!) a couple times a night to go to the bathroom. Which is great but I'm exhausted. I don't know that her having free range of the house would be any less exhausting though, esp since she's up at 5-6. She conks out easy - I'm afraid to mess with a good thing but I know I can't leave her in there forever.