I think that the description of the curtains is false and misleading.  These curtains are not thermal and they do allow some light through so they are not room darkening as stated in the description.  They are a thin polyester material and have no thermal backing on them whatsoever.  My husband talked to an agent who agreed that the wording in the description was incorrect and that they are working to correct the problem.  She offered 15 %  off my purchase price and a 10% discount on my next purchase.  The only other option was to return them and get a full refund.  I had to think about what to choose to do.  We called back the next day and waited at least 45 minutes on hold and decided to try again another time.