The squeaky wheel gets the oil. If you don’t complain about how your crazy work schedule is making your crazy, sleepy, less productive and unhealthy, then your boss and your company may not give a damn. Sorry. You have got to speak up as an individual or as a member of a union or let your primary care provide do the talking for you.
Be careful. Your boss and company may care more about profits and productivity than your sanity, your health, and even accidents.
Sleep Tip #180: Be the squeaky not the sleepy wheel.