Would you go a day without eating if you didn't have to? Think about how bad you feel when you don't eat and how great it feels when you finally do. It probably isn't something you would want to endure very often.
Have you ever had to go to the bathroom, but there just wasn't any place to do it (at least legally and discreetly)? Or recall the last time you were badly constipated. Think about how bad you feel when you can't perform this basic bodily function and then how great it feels when you finally can. It probably isn't something you would want to endure very often.
Have you ever held your breath to the point where your lungs start to burn? Think about how bad it feels to not be able to breathe and then how great it feels when you finally do. It probably isn't something you would want to endure very often.
Have you ever had to start your day after not getting very much sleep? Think about how bad you feel in the morning and all day long, and then think about how great it feels to get a good night's sleep so you wake fully rested. It probably isn't something you would want to endure very often...oh wait!
So how come you don't get enough sleep? Routinely? Night after night after night? Sleeping is a basic need to keep our bodies healthy, just like eating, going to the bathroom and breathing, yet you deprive yourself of it on an almost constant basis.
The more science learns about sleep, the more important they find it to be. The obvious benefit is that your mind is sharper and you're able to function better - even physically better - after you've had enough sleep. But that's not all sleep is needed for. You need sleep for your body to heal itself. You need sleep for your body to regulate your metabolism properly. People suffering from sleep apnea (where upon falling asleep, the muscles of the tongue and mouth relax, blocking off breathing and forcing the brain to reawaken constantly all night long) often lose weight as soon as they use a CPAP machine (which prevents sleep apnea). And perhaps the coolest and most important of all, sleeping washes your brain, as explained in this TED Talk. Unlike the rest of your body, your brain has no lymphatic system to rid itself of toxins. But during sleep, the blood vessels in your brain contract and allow the cranial fluid to enter the deeper recesses and wash away all the bad stuff. The consequences of not washing your brain are not fully known, but it is suspected that there could be a link to Alzheimer's Disease.
So why don't we sleep enough? Its funny how sleep is the first thing we readily sacrifice when we run short on time. Would we sacrifice oxygen? Food? Bathroom time? Generally not, so why sleep? We need it as much as those other things. The difference is that the discomfort we feel when we skip those other things is more immediate and acute than when we skip sleep. I suppose we were created (or evolved - take your pick) that way because forgoing sleep could be a matter of survival. We have the capacity to go without any sleep for more than a day and persist on much less than our daily portion for weeks, months and even years. The funny thing is, we take advantage of this capacity even when it is not a matter of survival. In our daily lives of relative safety and comfort, we cheat ourselves of our nightly allowance in the name of work, school, TV, Facebook, funny cat videos on YouTube, etc.
It doesn't have to be that way, it just takes a little discipline. And it's not much more discipline than that required for other sensible behaviors, such as not eating too much junk food or brushing your teeth every day. And it's much easier than sticking to an exercise program. If you have to get up at 6:00 AM in the morning, that means you should go to bed at 10:00 PM the night before. You might not be feeling tired at 10:00 and you may still have a bunch of things you need to do before calling it a night (only 7 more cat videos!), but you need to be firm with yourself and do the right thing. You'll thank yourself in the morning when that alarm goes off, and if you do it reliably, you'll soon be waking up naturally just before the alarm, feeling rested and ready to go.
Many years ago, when some of my kittens were very young and I had to get up very early to beat the rush hour commute to my job which was an hour away, I was determined to make more waking hours for myself at home in the evening. I forced myself to stay up late each night, and with practice, found that I was able to get by on only about 5 hours of sleep each night, night after night, and yet feel normal each day. I was actually quite proud of this "accomplishment." After a few months of this, something very strange happened to me. At that point in my career, I was writing software programs for the company that I worked for. One day, our program tester came over to my desk and said he had found a problem with my new program. I asked what program he was talking about and he referred to it by name (each of our programs had a name so we could easily refer to them). I told him I had not written that program, that someone else had, because I didn't recognize the name. But he insisted it was my program and described what the program did. I still didn't recognize it and continued to insist that someone else had written it and he was mistaken.
Since he wasn't giving up, I agreed to go look at the problem. It would not be the first time that I had been asked to find a problem in someone else's program. Seeing the program in operation, I still didn't recognize it and became even more adamant that someone else had written it. Finally I set out to prove it and went to the file drawer where we kept the printouts of the program (this was a long time ago). I started to read through the code and had to admit that it was written in my style. We only had a few programmers and each had his own style. This program was definitely written the way I would have written it, if I had been the one to write it. I studied the program, which did not look at all familiar, in order to find the "bug" in the program that was causing the problem. Over the course of about an hour, I very, very slowly began to feel like the program was a little bit familiar. As I continued to work on the problem, that feeling of familiarity continued to grow, until eventually I felt enough of a sense of recognition that I began to feel that the tester was right - I had written this program. It was a Wednesday. The date on the program was the previous Monday, just two days prior.
Writing a computer program is a personal and somewhat intimate process. I imagine it is like painting a picture or writing a poem. It is a creative process and requires a lot of concentration and effort. When you are done, you definitely feel a sense of ownership (for some programmers, so much so that they hate to have anyone else even touch their programs). After putting only just a few hours into writing a program, you are not likely to forget it. Certainly not after only two days. Yet, that is exactly what had happened to me.
Needless to say, I was a bit worried about this event. Within a day or two, I happened to hear a report on the radio about a study that indicated that most Americans do not get enough sleep. They began listing the symptoms known at the time: fatigue, irritability, inability to concentrate, weight gain, and short term memory loss! Deciding that lack of sleep was my problem (remember, only 5 hours a night for the past few months!), I focused on getting enough sleep every night. I never again had a memory failure as scary and unusual as that terrible day.
Five hours a night is not much, but it is not that much less than the 6 hours you are probably getting a night. This is playing with fire. You were built to sleep, just as you were built to breathe, eat and eliminate waste. It's time to get serious about sleep and make sure you spend enough time doing it. We can all survive a night or two of inadequate sleep, and sometimes it is unavoidable. But it shouldn't be the norm every night. Don't wait for something bad to happen, like losing your memory or falling asleep behind the wheel. Start practicing a full night of sleep every night. Make inadequate sleep the exception, not the rule.
Hey, what time is it? If it's after 10:00 PM, stop reading this right now and go to sleep!