Yucaipa Valley is a mountain-locked mesa, varying in altitude from 2,000 to 3,000 feet. It is recognized as a fine site for apple and cherry orchards. It is to California what Hood River Valley is to Oregon ... and what Yakima Valley is to Washington. 2
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.
Weakened veins cause oxygen depletion in your legs, giving you that heavy sensation in your legs. People who have varicose veins or other problems with venous insufficiency in the legs can lead to some leg swelling that gives a sensation of heaviness. It may also a serious symptom of peripheral vascular disease.