R.R.
Hi D.,
I know of a website that sells used kids and babys items called Craigs List. I think you need to access Craigslist.com, I haven't personally used this site, but a close friend who is expecting a baby bought several items from this site. Also, there are kids consignment stores that may carry toddler beds.
My babysitter bought her daughter a twin size bed with the kids crib rails and bought the disney princess bedsheets, snd had her sleeping in a twin bed at a year old. This might be another way to go, considering most toddlers will outgrow their toddler beds in a few years, then you'll be back to square one with buying them another bed. Sincerely, R.