DD was 16 months when she went into a bed, because we knocked down our house to rebuild and moved in with mum - it was just easier. it was a full sized bed, and at firt she couldn't even climb up inot it without help!!! We started by putting pillows on the floor along the side of the bed in case she fell out - which she only did twice. each time we found her asleep on the floor the next morning - she hadn't even woken up when she fell out!