Does your sleepiness have an impact on your work or personal effectiveness?
Do you still feel tired upon waking in the morning?
Does the length of your workday negatively affect the amount or quality of your sleep?
Does your work schedule cause you to get less sleep than you should?
Are your mood, functioning, or ability to interact well with others ever affected by sleep loss?
Do you use caffeine or sugar to cope with sleepiness?
Does stress keep you from going to sleep in time to get sufficient rest?