Want to instantly change your life? Go out today, and get a new mattress and get the best one you can afford.
Sleep is vital, it is no badge of honor to pull an all nighter all the time, or to only sleep 4 hours a night. The bags under my eyes are not impressive and no one will be impressed with the work I put out.
Get some sleep, and get it regularly. Do whatever it takes to get a good night's rest.
"Fatigue makes cowards of us all." - Vince Lombardi
Get skin in the game.