So this is Ronin's big boy room ( obviously the mattress will be on the floor for awhile becase the bed is so high. The problem is the windows, they are like all our other screened windows in this house, the screens slide so we can open the windoes. The room is like a sauna if the windows aren't open and when he goes in there the door will have to be closed because it leads onto hubby's 'room of doom' and we can't find a baby gate that is big enough for the doorway (double door). There is also another door in here that leads to the patio but I am fine with that because it loscks and is dead bolted top and bottom. How would you toddler proof the screens?