What an awesome idea in a little room! Stick a mattress in between and you've saved a whoooooole bunch of waste space. *put some pillows on that top shelf, and you've got a reading nook too! the possibilities are endless!!
diy & another idea is you could make bunkbeds with this look/idea in mind too. That would be awesome for anyone with tons of kids, or you could do the bunkbed idea version on 1 side (with just 2 bunks) & window seat or futon or whatever on the other side. I love the storage.