The Background.
Some of my friends, specially in the medical field, are caught in between shifts and left with a minuscule amount of time to sleep or to recline and relax completely.
And I have helped many of them how to do a 10-minute relaxation that is equivalent to 10 hours of sleep. I learned hatha yoga when I was twelve years of age, and learned this technique from a yoga master. And over the years, I have developed my own style that works for me very well and for most people I met and taught this technique; it's not very far from the original yoga, and yogis would readily recognize the difference and the similarities.