The hammock is a great idea so smaller "secret playroom" areas. This kid’s bookshelf opens to a secret reading nook. A SECRET READING NOOK. I would’ve never left. (from Everything About Secret Bookcase Doors)
how to make a secret door a room or closet. I think we'll figure out how to do this for double doors. I have double doors between my sew/craft room and what will be the dining room. more storage in what would have been lost space .
DIY Tutorial for hidden door bookcase. Can put valuables behind there not sure if I should put it in crafty, but theres part of that loves the idea of having a secret room :D Id make it into a little reading nook