My big girls are in toddler beds at the moment but I need DD2s for DD3 to sleep in (so I can put one side back on and make it a co sleeping bed - its a cot/toddler bed) as our bed just isn't big enough for the three of us all night anymore so I hope to slide DD3 over into the cot when she isn't feeding.

Anyway, I am trying to decide if I should buy individual beds or bunkbeds, bunk beds are obviously space savers, my concern is age. I would put DD2 on top as DD1 is mildly disabled and could not climb up and down, she struggles in her toddler bed at times. DD2 is 2y9m and a capable climber, she has never fallen out of her bed while sleeping during the night and she does not have a rail, obviously the top bunk would have a rail which would go 3/4 of the way across just leaving the stairs exposed.

So I am wondering, what age did your child sleep on a top bunk? Do you think my DD is still to young?