Currently just have the little guys, and they're in playpens. Once Dcg2 starts potty training, we'll buy her a cot - they have some nice ones at Walmart in the US for $25. http://www.walmart.com/ip/Regalo-My-...el-Bed/4433186

My 2 yr old dcg (just turned 2) is currently on our guest bed - no rails! I started her on the bed, as I could no longer lift her into the playpen when I threw my back out. Then she wouldn't go to sleep for her parents in her crib. She's been in a big girl bed since Christmas time!