>>
I believe that Gary Lee makes/sells very nice ones.

http://www.telusplanet.net/public/gary2a/rack/frontbed/frontbed.htm
<<

I owned that cot when my daughter was little.  it is pricey BUT it is
extremely well made.  It fits tight as a drum.  It's more "bed like" than
allot of others I've seen that are more like hammocks when the kid is in
there.

Bryan