I love how these blackout curtains literally black out any light, resulting in a cooler room.  They are a bit on the heavy side, so make sure to have a steady rod, otherwise, your rod will be a little lopsided like mine.  These curtains look sleek, expensive, and are definitely worth the price due to the value of them.  I feel like they will last a long time.  Personally, I got them because I hate the street lights shining through the cracks of my blinds at night- it makes it so hard for me to sleep!  But these curtains do a great job at keeping the light out