I just wanted to say that although my ds3 is the same my ds2 was also exactly the same! We just went with the flow. I made sure that every night he'd do the first few hours in his cot, then bring him in our bed. One night at about 11 months he just didn't wake through the night at all. I woke the next morning and ran into him freaking that something happened, only to wake him up. He literally went from waking non stop overnight to sleeping through and hasn't looked backed. At 2.5 he sleeps 12+ hours at night and 2+ hours in the day.