JOBLESS AND CAR DISA. It is important that excess sleep be very aggressively studied by labs such as ecp, vegf, vit d, il-6, il-1b, free t3, (liothyronine) Dht and free testosterone. Infections and many disorders can be a cause, and I have free books on some of these causes. You cannot function in school, in the work place or as a parent if you are sleepy. You could fail a dui and end up in jail since sleepy people look drugged..