I've got a new routine going that is annoying. Every night for the past week I have consistently awoken between 4:00 or 4:30 AM with cramps in the calves of my leg, usually my right leg. I get up walk it off and go back to sleep. Strange. This morning it was different. The cramps came at 6:30 when it was time to get up anyway. I just had blood work done and my potassium levels were fine. Dehydrated? I've been drinking eight cups of water a day consistently. I can't figure this one out.