jayco jay flight slx bunk bed with curve entrance size

[ozarkmom89]

i am renting a camper and would like to make something to keep my 2 year old from getting out of bottom bunk while sleeping. if anyone could kindly help me with the size of the entrance of the bottom bunk vertical and horizontal for this curved bunk bed. im going to use those safe wall sticker hooks on the wood portions and then attach a bungie mesh to it so he cant get out but i can take this all down without damaging the camper