Paint the walls using your favorite team's colors. Optional ideas for the walls include a mural or vinyl decal of your team's emblem or basketball star.
Hang accessories on the walls that can include a basketball clock, coat rack and mini basketball hoops that can be found in most toy stores.
Refinish a wood floor to match the color of most basketball hardwood floors. If your budget allows, hire a professional to paint a replica of your favorite basketball team's court. A basketball-styled area rug is a good substitute if you're looking to spend less on the floor.
Apply basketball-themed bedding to the mattress. This can be a generic basketball pattern or one that depicts your favorites team. Other bedding accents could include basketball curtains and lamps.
Add other small accents to round out the decor. Ideas include light switch covers, posters, bobbleheads, pennants and other small pieces of basketball memorabilia.