It seems like people are proud of the fact that they only sleep a handful of hours a night and spend their days consuming alarming quantities of Starbucks and 5-Hour Energy Shots in order to stay awake. If you're one of the people who fits within this demographic then you need to think about what the short and long term effects are going to be - and if you are willing to pay the price.
Sleep deprivation can effect your ability to think, heal and produce the hormones that you need to recover from workouts. If you think that sleep isn't important then you need to think again - it's one of the keys to making progress in and out of the gym. Want to lose weight? Get more sleep. Want to increase your strength gains? Get more sleep. Want to get smarter and more mentally sharp? Get more sleep.
Are you seeing a pattern here?
Check out this article on Breaking Muscle to learn more about how important sleep is and why it really isn't important to be on Facebook at midnight every night!