Ayurveda describes the causative factors for insomnia are Vata aggravating factors such as, over activity, working in the night times, over utilization of mind, excess physical activity, stress, trauma, fear, anxiety or grief. Diet related VATA aggravating causes such as eating dry and unctuous food, eating with stress, or stressful eating, not enough time to eat, eating excess cold, rough and raw foods. Aggravated Vata disturbs the already disturbed Rajas and cause the sleep disturbances.
Mostly sleep issues arise during the mid night or too early in the morning, which is VATA predominant time. People going through menopause or constitutional change from pitta age to vata age are the most common people suffer from the sleep deprivation or improper sleep.