Get enough sleep the night before
Take a short nap earlier in the day
Stay in a bright, well-lit area
Keep the room cool
Drink water regularly
Have a light snack if needed
Avoid heavy meals
Avoid alcohol
Avoid sedating medications unless prescribed
Move around frequently
Stand up and stretch often
Walk periodically
Keep your mind engaged with active tasks
Listen to music or talk to someone
Avoid lying down or getting too comfortable
Limit caffeine if it is too late for you
Use caffeine strategically if appropriate
Wash your face with cold water
Open a window for fresh air
Change tasks when you feel drowsy
Break work into short intervals
Avoid monotonous activities
Keep your posture upright
Reduce screen dimness if it makes you sleepy
Use a timer to stay on task
Have a plan for when you feel tired
Stop and rest if you feel unsafe to continue