Sir August De Wynter is the main antagonist in the 1998 film The Avengers.
Quick Answer. Heavy legs are a common symptom of peripheral artery disease, according to SecondsCount. The heavy sensation also points to varicose veins, according to the Mayo Clinic. In those who are heavy exercisers, heavy legs are a symptom of overtraining, adds the American Council on Exercise. Continue Reading.
Elevating your legs may help relieve some discomfort. In your case, however, waking up to a discomforting feeling of tired and heavy legs may not be caused by the lack of rest alone and it could be due to insufficient sleep or poor sleep quality.