Benafits of sleep
One theory is that sleep is our brain's opportunity to file away or discard memories, thoughts and events from the previous day. Think of your brain as a desktop computer, and sleep as your way of organizing everything after a long day of work. Some of the files you may want to store away as permanent memory, but others you might want to put directly into the recycling bin. If you’ve had a bad day and just want it to end SLEEP IS FOR YOU, it allows you to forget bad memories and refresh your brain.
Your body uses most of the night (except when you are in REM sleep) to heal damage done to your cells and tissues when you are awake and more metabolically active. At the start of the night and during slow wave sleep, your body also releases growth hormone. Lack of sleep, on the other hand, is linked to muscle atrophy. Are you not gaining muscle? Than you might not be getting enough sleep.
If you find yourself cringing due to sudden head pain, look at your sleep schedule. Multiple studies show that people who don't sleep enough are more likely to suffer migraines. "Poor sleep quality is uniquely associated with episodic migraine," write the authors of one recent study (emphasis ours). Additionally, 36 to 58% of sleep apnea sufferers wake up with a throbbing head. Are you getting throbbing headaches? Studies show this is sometimes related to sleep.