My personal bedroom is mostly book cases filled with books and games and two PC's. I mainly sleep in here also The walls are all light blue ! That's what you can see of them with the Fathead on them ! LOL
My walls are pale blue and the curtains, sheets, blanket and spread are all tie dyed.
I took the minimalist approach. Four bare white walls with only the essentials.
My bedroom wall he white. Most of the other colors are blue and mauve.
Natural colors and florals. When we moved recently, I got rid of the old oak furniture and now have off white/distressed finish furniture with tans/mauve/pale green .. Very airy and outdoors looking.
Right now, mine is quite the mess! Moving and messy!