There a myriad wall design ideas for bedrooms to enhance a plain bedroom wall. The simplest decor methods include adding photo frames, twinkling fairy lights, neon signs, etc.
A more effective strategy to enhance a plain wall is to think about experimenting with a different wall texture design for the bedroom. If you want to retain the colour but enhance the look, change the texture from the traditional matte to a more exciting finish, like rustic, marble, glossy, and more.
You can also add wallpaper to the wall, but it isn’t as long-lasting as bedroom wall painting.