Sleep

Tell me why is getting a good night sleep so important. Experts say it is for the body to rejuvenate. I totally agree. Getting a good night sleep is sometimes impossible. Is it that the bed is too soft, too hard? Is it the your mind won't stop when it is time to sleep. Or is it that we get too much sleep and when we wake up we just are not tired enough to fall back a sleep. Definitely aging has taken a toll. Having to wake up two or three times because the bladder can't make it all night long? When you are younger (20's) the body doesn't seem to need a lot of sleep. But in your 40's the body is tired but can't sleep when you need to. Any thoughts on this crazy thing called sleep?