When do you get cramp, is it mostly in bed? I mainly get cramps in my calf at night and do take quinine for this, but have personally realised it is often linked to the position my legs/feet are in. I have found that if my legs are straight, and I lay on either my front, or back, the toes are forced into a position of pointing straight down (by either the bed, or the weight of the duvet). I read somewhere that at this point, an involuntary attempt to extend the feet further despite already being stretched, causes the muscle strain, and therefore the cramp. To counteract this, I have found that either lying on my side, or with my feet dangling off the end of the bed reduces the occurrence. Appreciate this may not be true for many, but does help me.