I'm not talking desks where you get serious work done here - that would make it difficult to relax in what should be the most calming room of the home. But a small desk in the bedroom can be helpful for small tasks and leisurely letter-writing (if that's done at all anymore!). Here are some examples:
My own home has a very tiny desk in the bedroom (first image). I use it to store thank-you's, paper, pens, envelopes, a couple of books, and a few small accessories. The desktop is a perfect place to surf the net a little before hitting the sack. I could bring the computer to bed with me, but that just leads to staying online for way too long and losing sleep.
I suppose a very small space could double up and use the desk as a bedside table (image three), but I'm not sure I'd want a desk that close to my head when trying to sleep.
Do you use a desk in the bedroom? How do you put it to use?