Do you generally have trouble falling asleep even when you are dead tired? Do you often find yourself awake in the middle of the night, even though you went to bed exhausted? If this is you, then you might just have some sort of a sleep disorder. Sleep disorders cause more than just sleepiness; they might have a deteriorating effect on your productivity, psychological and overall health. It is a must to understand them in detail. Today, Dr. Pulkit Sharma, Clinical Psychologist and Psychoanalytical Therapist at VIMHANS helps us understand the top 7 most common sleep disorders in detail. *Images courtesy: © Thinkstock photos/ Getty Images