we have the saplings one in pine, but it also comes in white, blue and pink. you can get them in argos, kiddicare, ebay and other places, with a sprung mattress for £99 (or cheaper with a foam mattress) ds also has a tiny room, and its nice that there's still room in his room with this bed, however he's outgrowing it really fast (he's a big boy) and i wished now that i'd bought him a small, low to the ground, single bed. so it would last longer and also so i could lie down next to him when needed.
I think ther may be 3 sizes; cot bed, toddler bed and single bed. ie the ikea one is in 3 sizes. I maybe wrong. my friend just tucks the single sheet under a bit more and uses a normal quilt, horizontally at first I think.
About the climbing out. My son did it from before he was 2 but we kept him in the cot cos of the size of the room and he is a tall boy. He only went into a bed when we moved house the week before he was 3.
Well for some odd reason I think he didn't get in and out at night time, only early in the am. I put it down to my superior parenting not luck! ha ha! He always seemed quite safe though cos he was very tall. He used to like getting in and out with his friends and bouncing around.
He did get in and out of the travel cot a lot on one holiday I remember but we were all in the same room. When we moved him to a bed he was awful for a week out and about all the time.