In earlier years, it seemed the only option for sets for boys were very slim. The sets that were available were very stark and showed no style or personality. The furniture industry has come a long way. You can now find a boys bedroom set in pretty much any style, material and color you want.
I have seen it time and time again, I visit a friends home and while giving me a tour, I notice their sons room usually only consists of a bed and a dresser. With just a few matching pieces, a nice dresser, a side table and a headboard, you can literally transform a dull and boring room into a stylish and cozy space for a growing boy.
There is so much more to beds nowadays than just a mattress and box springs on top of a metal frame. Adding a nice headboard and foot board can make all the difference in the world. A bed on a platform adds a lot of style to a space.
There are also beds that offer storage space and drawers.
Why not add the style and decor to his room. Your son may not be asking for a nice boys bedroom set for his room but I am betting he will be very happy once he got it.