This bonus room screams sleepovers!!! :)
I would make this a pop-up trundle under the window seat. Perfect for a guest room you want to use for other options when there aren't any guests.
Bonus Room Bedroom Like the idea with different colors and textures!
Small Living Room Inspiration
Bonus Room Design - if our attic ceilings were taller I'd do something like this if we finished off the space.
guest room over the garage? yes....
Bedroom Bonus Room Design, Pictures, Remodel, Decor and Ideas
Upstairs Loft Area Made into a Game Room < Garden Ideas Throughout this Woodsy Cottage at Camp Callaway - Southern Living
If you have extra space in a room, consider adding a set of barn doors and turning the area into a useful nook like an office or nursery.
girls bedroom - how cute is the little gate? would be a darling idea for a bonus room turned double kids room!