I'm waking up earlier each day I'm on the low-carb diet. I read that taking magnesium before bed might help. Any other ideas?
Your body needs energy to sleep because you expend energy when you sleep. Between tossing and turning, digestion, REM, dreaming, stress, getting and urinating, body heat, being under blankets, etc and depending on your size a person can burn up to 1200+ calories in an 7-8 hrs period. Try taking in some carbs before bed.