Hm, that's odd... I've been driving for a few virtual days now and I discovered that sleep isn't tied to you, the driver, but to the truck or maybe better said the job...? As long as you do short jobs you can drive and drive and drive and drive without ever having a nap...! Is that's how it's meant to be? I should think that the game would have to look at the driver, no matter what truck he drives...? This means I won't have to sleep at all until my jobs are far enough...!
BTW Is there a way to skip time? I thought I could skip time by simply sleep a little even if it's not required but I can only sleep during jobs because I don't have my own truck yet... and if I sleep during jobs, I may arrive too late... (When you go to sleep, can you tell the game how long want to sleep...? I don't feel like trying and losing money because of getting too late... I still think the manual could have explained things a bit more in detail.