Invest in a planner to map out every hour of your day. Set aside blocks of time for class, work and homework. Scheduling will help you get all of your homework done, get enough sleep, and make it to class and work on time.
Set an alarm clock before you go to sleep. Set your alarm to ring about eight hours after you go to bed. An alarm clock will prevent you from oversleeping, and will help you keep track of your sleep hours to ensure you get enough rest.
Darken the windows of your bedroom by covering them with heavy blankets to block out sunlight, which may disrupt your sleep. Ask your housemates not to disturb you during your rest.
Avoid sacrificing sleep for other activities. Get eight hours each night. If you want to excel at work and school and remain happy and healthy, your body needs a significant amount of rest. Sacrificing sleep so you can take an extra class will not help you, since you will be too exhausted to learn and succeed.
Schedule your courses at a time that does not interrupt your sleep. For example, if you work from 11 p.m. to 7 a.m., plan to sleep from 8 a.m. until 4 p.m., and attempt to attend night classes at 5 p.m. or later. This will allow you to go straight from class to work, and will not lead to sleep deprivation.
Ask family and friends for support. For example, if you have a child you normally pick up from soccer practice at 5 p.m., but you need to take a course at that time to accommodate your graveyard schedule, ask a spouse, friend or sibling to pick up your child. The people in your life are likely to be supportive of your ambition to work while going to school.