Bed Tent Twin Custom.
Unfold these and push them together. Now you should have what looks like a small tent that puts on top of your child's bed. Some have ties to tie to the bedposts.

Bed Tent Twin Black

Bed Tent Twin Blue

Bed Tent Twin Boys

Bed Tent Twin King Size

Bed Tent Twin Light

Bed Tent Twin Net

Bed Tent Twin Popular

Bed Tent Twin Purple