Here's a collection of 25 great wood L-shaped bunk beds with incredible space-saving features such as desks, drawers and shelving. Some have small staircases too. I shared a great bunk bed with my brother growing up.
"The Courtney Bed, hand-crafted pediatric Special Needs beds for children who have a cognitive disability and need a safe place to sleep. The Courtney Bed is a great alternative to a standard hospital bed and is designed for children with Cerebral Palsy, Autism, Down Syndrome, Angelman's Syndrome and Developmental Disabilities." http://www.cyrdesigns.com/
Some clever Japanese cat owners have re-purposed a simple but popular doll bed from IKEA, turning it into an adorable bed for their cats and other pets. The $20 Duktig is officially a toy bed for children’s dolls, but it also seems to have become IKEA’s first foray into the pet furniture market. Incidentally, the slot at either end of the bed is an excellent feature for cats – it lets them stick their tails out if they want to relax.