One of the main things is to keep it nice and simple, overdoing the colour scheme, using lots of patterns, bulky furniture and lots of accessories will just make the space look cluttered and untidy, simple clean lines and quality oak mirrors and furniture pieces that are functional and necessary will be a lot more useful.
Metal beds were used a lot in the Old West. Many people don't realize that the very bed they could be sleeping on tonight could have been inspired by beds of the Old West. There are many antique beds of today that came from that period in time or are greatly inspired by that period in time.
If you wish, you can keep his bedding the same for a while, to give him the comforting feeling of some sort of continuity in the transition. Or you can have brand new custom bedding designed to match the theme of his big boy bed. Which option is best depends really on the child.
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