DD2 will be 2 in a couple of months. She's in a cot bed at the moment, sharing a room with her sister who is 4. Having the debate with DH as to when to move her to a proper bed. When she moves to a proper bed we'll put them in bunk beds with DD2 on the bottom bunk. This will free up a lot of space in their room.
We moved DD1 to a bed at 2, as we were going to stay with family and they only had a bed, no cot. Probably would have waited longer otherwise.
When did you move your toddlers to a bed?