My doctor recommended Tums/Rolaids. If your antacid has the extra calcium in it, just remember to take 2 before you go to sleep and it does help a bit. I also noticed my legs cramp up when I point my toes down stretching at night, so if I do that and even slightly start to feel it coming if I release fast enough they don't totally cramp up. Who'd have thought I'd be able to have that much cognitive ability in the middle of the night, guess I REALLY just don't want to feel that pain! LOL