It's amazing how early in our development we start fantasizing about our living environment. Most young children, if asked, will suggest how they want their bedrooms to be decorated.
Other hints can be had from a small book called "Style to Go: Bed and Bath," written by Josh Garskof and published by The Taunton Press. It presents simple but seldom applied decorating ideas such as drapery alcoves.
Your daughter's bed could be placed against a wall and surrounded with some pretty drapery panels. That arrangement will create a cozy sleeping or play area that any princess would appreciate. It will also help camouflage the trundle bed - a wonderfully functional piece of furniture for a small room, though one that probably won't qualify for an award as the design of a bedroom for a princess.