Mix in patterns through color continuity. Choose different patterns that share one same color, and another that is similar to tie it all in. For this space the blue is the dominant color, and black is an accent used sporadically to tie in the color scheme.
Trying to fit two beds into one room but can’t make it work? It’s possible that placing them lengthwise will provide the solution. A dresser in the middle creates a slight separation in addition to storage.