If you want the greatest benefits from your sleep, whether eight-hours of uninterrupted sleep, or a four-hour insomniac’s sleep, you've got to meditate!
Meditator Jerome Stone makes this statement, and as a meditator and a researcher about insomnia, I know this to be true.
There are times in our life when we sleep more hours straight through than other times -- but if we practice meditation, we find that we don't need to get in a panic about a bout of what we might think of as that dreaded "insomnia."
I occasionally wake up around 3 am to go to the bathroom. When I come back to bed, I arrange the pillows for a backrest and sit in my usual meditation position. Often just 10-15 minutes of meditation brings my brainwaves down to the more relaxed Alpha state.
Then I just change the pillows back to the sleeping position, turn off the light, and drop off like a baby.
(Note: Many "experts" will tell you to get out of bed when you wake up and go do something else until you are sleepy again. I suspect these people are not meditators.)
Enjoy Jerome's post -- his blog is worth following, in my humble opinion.