6 hours is good sleep. 8 hours of sleep is much better. 4 hours of sleepy time, not so much. Sleep deprivation is a high cause for demotivate. Lack of sleep depresses the mind. Slowing you down, and bringing you down. If you are on a weird schedule already, then your Circadian rhythm are being tortured. The sun tells our bodies what time it is to wake up, or to go to sleep. You need sunlight in your life. Sunlight brings life to you. So, stand outside a little each day and breathe. Most important, sleep.
If you are a night owl living a life dedicated more towards a normal 16 hour day… at night, then sleep in a dark room. Keep your windows from taking in light. This will help you regulate your body. If you are a day dweller than stick to sleeping in a room that allows sunlight into the windows at the appropriate hours. Whichever lifestyle you have it is more important that you get 8 hours of sleep. Get to bed early enough for that 8 hours of sleep to take place.
Make no excuses sleeps is needed. Even Arnold Schwarzenegger would get to bed early enough for 8 hours of sleep. The body heals during that time. When you drain yourself by working 365 days a year, you need some sleep to re-up on the energy level. Think like the game “The Sims”, if you don’t let your Sim sleep, it doesn’t live correctly. Same goes for you good human! Sleep it off as one might say. You deserve 8 hours. There is plenty of time tomorrow to get back to working. You need only deal with things for 16 hours, then take a nap, a nap that last 8 hours.
P.S. If you really wanted to try it, here is an interesting sleep-style called “Power Napping”. Thomas Edison use to do this… here is a link (http://www.wilywalnut.com/Thomas-Edison-Power-Napping.html)
“ah, van vesua! cummuns nala!”
Deadly Nights (Band)