We already had a twin bed. We put it against the wall with a safety rail on one side and a crib mattress at the bottom. She is a very restless sleeper, so she has actually fallen off the bottom of the bed several times. She has even been known to sleep through it. A couple of times we’ve gone in to get her in the morning and found her on the crib.
We haven’t figured out what we’re going to do with Alex yet, so I’ll be interested to see what everyone suggests.