well first why do need extra sleeping space in his room? If you need it get a blown up matterss that way it is tucked away when not in use
Second if his decor is red blue brown you could paint each wall a diffrent color or do those colors in stripes
A nice blue rug also would be nice
And...
tought one here i like green and oranges
Just no browns! I am sick of browns! lol
Do you have a fav pic you could try and match to or bring out a certain color in it?
im my opinion i never like bright colors i would keep them pretty pink and purples what color is her walls?
You know even comforters with flowers but not bold bright ones would be great for a girl,jsut something about swirls is not pleasing to me maybe my age but i gues it would make me dizzy...