As your babies start to grow, you will need to think of beds and other things they need in their room. Getting a treehouse bed for them may not be a bad idea. This Tree House Bunk Bed by Adam Hadlock looks quite interesting. It has a rabbit hole cave, dresser, trap doors, and cut outs and limbs for climbing up.
This bed looks like a tree and provides your children with a place to sleep, relax, and play. Adam Hadlock has this project up on Kickstarter.