Yes, the length of your curtains is important. When getting curtains for your small bedroom, don’t just pay special attention to the color of it, but also make sure they don’t touch the floor.
The principle behind this is that letting your curtains touch the floor stops the flow of the room. The same goes for furniture where you should let the legs show.
Allow the eye to move by keeping the curtains shorter and legs of the furniture visible. Tie them up nicely so that the room feels airy by ventilation from the room.