text: I remember being your age...sometime during the Roman Empire...  Had those same leg cramps.  Mom the R.N. told me they were "growing pains" and to eat bananas and drink plenty of water during the day.  It worked.  Also, to relieve a cramp, try tensing those muscles up as if you were trying to MAKE a cramp.  Seems counter-intuitive, but give it a try, it works for many.\n\nLight stretching before bed might relieve stiffness that exacerbates cramping.  And if worse comes to worst, a benedryl will help you sleep through just about anything your legs can dish out.\n\nBest wishes.