I'm not a fan of bunk beds but if you have them and you need to create some protection from the energy then this is a good idea. Built in Bunk Beds, plumbing pipe ladder, love the curtains - privacy in a shared room.
It is ideal to have enough space so each of your child has its own bedroom. But what if you have just one bedroom and four kids? The best way out is opting for bunk beds that will accomodate all of your kids plus will help solving space issues.