Most of my adult life I have had problems with leg cramps during sleep. I tried taking calcium, magnesium, K, all to no avail. The cramps are actually dangerous, imv. I would need to get up and walk around at various times during the night. Finally, my husband came across Salt Wrap once while surfacing the internet. We thought it cannot hurt and it's worth at least a try. To my great pleasure the Salt Wrap works significantly. Starting out at taking two prior to sleep helped a bit but not always. Then i tried taking three and that apparently was the thresh hold, the cramping stopped. As long as I remember to take three sufficiently prior to sleep, I no longer suffer from the cramps I used to have. Now I am able to sleep through the whole night without waking up with a very painful cramp. Because of this, I also sleep much better and, as a result of better quality sleep, I no longer have bags under my eyes. Thank you, Salt Wrap.