on purchases of $34.99 or more and
Free Standard Shipping on purchases of $34.99 or more applies in the U.S. only. Free Returns in the U.S. and Canada. Large, oversized items and products delivered by special or white glove carriers are not eligible for free shipping or free returns. Free returns are not applicable to final sale/non-returnable items. As always, check the deal's Fine Print for restrictions.
I love these curtains... I wasn't concerned about them truly darkening the room and because they are white with accent color they do not block light entirely. I would guess the darker colors with light accent would darken well...