I bought floor length black out curtains for LO's nursery before realizing that the heat/air vent is directly under the window so if the curtains are closed, the vent is covered. Ugh.

Does anyone have non-floor length curtains in their nursery that can show me a picture? I am just going to make my own but am unsure of what will look least awkward when it comes to length. Help! Google Images is drawing blanks!