These black out curtains are awesome.  They are super heavy duty and durable and completely black out my room.  I live on a street where there are bright street lights and these curtains totally blacked out my room from seeing those lights.  I used to have a glare from the street lights and now it is complete darkness.  I was amazed at how the curtains totally blacked out the room.  These are premium quality curtains and I would recommend them to all if you want your room to have darkness from the sunlight and other lights.