S.W.
Children are very clever at this age. I don't think that I would bother with trying to buy a top for the crib. In my opinion it would be money that would be spent and only serve as a very temporary solution and you would still be worrying about when the baby would learn to escape and potentially get hurt. I agree with the other readers that I would begin transitioning the baby out of the crib. We skipped the toddler bed and transitioned our children directly to a twin bed with bedrails. We bought a bedrail package that offered a rail on both sides of the bed and connected under the mattress with straps that you could adjust (tighten). I also like the suggestion for having a dutch door (one that can be closed at the bottom and open at the top.)