The length of your bedroom curtains will depend on the size of your window and personal style preference. To start, your curtain should be long enough to fully cover the window. This is important in order to provide the best light blockage. Moreover, curtains that fully cover the window will also help retain heat and dampen noise.
When determining the length, measure the full size of the window. Add several inches to that length in order to make some allowances for hanging. If your rod is positioned above the window, you will want to make sure the curtain is long enough to fully cover the bottom portion of the window.
You can also take style into account. You may opt for curtains that are much longer than your window. For these curtains, you can hang them extra high or let them drape to the floor. This can make your room look more dramatic, and it can be particularly useful if your windows are smaller.
