My DD is 2 1/2 yo. She has always slept 13 hours at night, Last few weeks she is waking during the night usually early hours and singing, not a problem at first but now she is shouting 'Mummy' repeatedly and very loudly through the night. I've just started a new job last week which requires my full concentration and I'm going in like a zombie as really broken sleep. Does anone else have a baby monitor on their toddler? Am I being over protective by having one? She does not appear fearful when I go in and as soon as I go into her she lays back down and settles for half hour or so, then she starts again. She still in cot with sleeping bag, but was thinking of changing to bed and duvet soon. This new development is making me rethink as I believe she would get up during the night and the disturbance would be worse. Is this a normal development stage she is going through??????