We changed DS over from a crib to a bed a few months ago. His new bed is a loft bed with a railing around it and a slide at the end (I was scared of him falling out at first but the railing contains him well and we have his crib mattress on the floor next to it just in case). This has been great as it's a bit more of an effort for him to get out of it since he has to crawl all the way to the end and then get down the slide. The first week or so he would get out of bed several times after we put him down, but we would just pick him up and put him back without saying anything. Now he knows not to get out. He might cry for a few minutes but he stays put and he loves the bed so much he usually go to sleep pretty quickly. I turn on a white noise machine which he also really likes and seems to get him to sleep quicker. In the morning he'll come down the slide and then crawl into bed with DH and I.