Work well, but really stinky!!!!
First of all, I AM sleeping better.  I have been a poor sleeper all of my life, waking up at 4:30 and not being able to go back to sleep.  Without changing anything else, I am sleeping through the night for 8 or more hours!  I really can hardly believe it.  However, I gave it a 4 star rating, because despite being able to smell a tiny bit of lavender in the pads once you have taken them out of the sealed plastic packet, what you mainly smell is charcoal.  In the photos on their web site, the black wet stuff you see on the foot when the pad is pealed back is just the packet ingredients getting wet.  The packet is black, so when it gets wet, of course it is going to leave a black film on your foot.  But the smell....OMG!!!!  It is awful!!!!  I am a widow, so sleep alone, and I can hardly stand myself, the smell is so bad.  There is no way I would wear these if I was sharing my bed with someone.  So FYI, be prepared to smell bad while you are wearing these foot pads!
Rating: 4 stars