A.D.
I agree that she isn't ready yet for a toddler bed, you really don't want a whole new set of sleep issues to come up when you're already having them. My son is 21 months and will be in a crib until he goes to kindergarten! A friend of mine puts her son in a sleep sack to sleep in (he's a big boy--almost 30 pounds and 22 months old) and loves it because he can't lift his leg to try and climb over. That could maybe be a cheaper alternative to the crib tent, and if it doesn't work I would try out a crib tent. They make them in sizes up to 2T. That's what I plan on doing if my son ever tries to climb over (crossing my fingers, he hasn't tried to yet!)