Most nights I sleep for about 4 hours. I’m not sure if it’s a problem because I don’t feel tired when I awake. I think my diet has a big part to do with it, my body isn't spending too much time and energy breaking down certain foods. I also do a lot of meditation and believe that it helps with rejuvenating my body and mind…which is probably the reason why I don’t have dreams. Dreams (imo) is the mind contemplating the issues of that individual. Hence the expression “sleep on it”…
Peace