There are two ways you can decorate your bedroom and none of the possibilities is so complicated.
The first of these two possibilities and it is very easy to just to hear your ideas for decorating a bedroom. Put it in a simple word, should decorate your bedroom as you like.
This is a very good idea, and most people like this approach. You can place any color you want, take off your bed or next to the window on the room. You can decorate the walls in your bedroom by hanging pictures of the people you love, or just paint the walls just white, green or any color you like.
There are too many choices and if you have the time for this, you should decorate your bedroom by yourself.