We have a 14 month old boy, and we are looking to take him out for some trips in our caravan. Our van is fitted with bunk beds, and I am looking at building a gate for the opening (using an old cot side panel) and also blocking off some of the length of the bed using another panel. I plan for this to be solid, well secured, and to ensure there is no gaps between the mattress, etc. As I cant get access to the Australian Standards that govern Cot standards, I was wondering if there is any issues. Mainly regarding the mattress, etc. The existing mattress appears to be a relatively firm foam mattress.