D.M.
My daughter potty trained at just about 2. She is now 4.5 and has NEVER been dry at night. She still sleeps in a pull up at night. The Dr said they are not the same. At night you need to physiologically develop a sense to wake up when you have to go. This development doesn't happen for some until age 5 or 6. There are some that go longer and they don't intervene (timers etc) until that age She said not to worry and rush it as we can't. It will come. My only advice is it's normal and stock up on pull ups!
Updated
My daughter potty trained at just about 2. She is now 4.5 and has NEVER been dry at night. She still sleeps in a pull up at night. The Dr said they are not the same. At night you need to physiologically develop a sense to wake up when you have to go. This development doesn't happen for some until age 5 or 6. There are some that go longer and they don't intervene (timers etc) until that age She said not to worry and rush it as we can't. It will come. My only advice is it's normal and stock up on pull ups!