This is our guest room, used to be my dd's room. Relatives can sleep on the full-size bed below, and the kids in the loft.
Guest Room

My son (excuse the mess) uses the space under his loft as his entertainment center. His gaming, tv, and electric bass are stored there, along with his gaming chair.
Son's Room

Our bedroom is also very small but we remedied the need for storage with a pier group headboard and an extra dresser. I think I have pictures of our room that show just how small it is but we did block the window with our headboard. Sure makes it nice in the mornings as that's an eastern window and so the sun doesn't wake you up.
And the Guest room is very small but my daughter never complained, unlike her brother. She just filled her space with shelves and furniture and lived there until 3 years ago when she bought the place next door to us. Now that we're official empty-nesters, I think I've got plenty of room.

Marilyn in NM

I also had a loft in college dorms (three adult women in a 15x18 room *shudder*) and in a couple of shoebox-sized apartments. The hardest part was making the bed... I admit that often I got lazy and just used a sleeping bag because I got so sick of whacking my head on the ceiling trying to make the bed. :-(

johanmari--yes, making the bed is a pain. That's the only downside. Luckily, my son can make his own, and the guest room one doesn't need changed often.