My girls are dying to share a room---so much so that my youngest has started sleeping in her sister's closet. Seriously.
Instead of bunk beds, opt for space-saving murphy beds in a kids' room or guest room. More
10 Bunk Bed Ideas for Tiny Houses
A neat option if space is an issue - could also be good for a spare room. Available from http://www.apartmenttherapy.com/double-murphy-bunk-bed-175927
Pretty & patterned or simply chic; ideas to inspire for little girl's rooms
bunk bed drawer steps
Vertical rods embedded into the book case act as handrails so that kids can get up and down safely.
This #DIY indoor treehouse (with slide and climbing wall!) is perfect for days when outdoor play isn't an option.
Climbing the Walls, Literally: Climbing Walls in Kids Spaces