Discovery News reports that if you want a nap in a hurry, the best way to do so is to grab a hammock and rock yourself to sleep.
Apparently, both the gently sagging support and the rocking motion help you get to sleep faster than our traditional fixed bed.
If this can be consistently replicated, you might want to replace your bed with a hammock. Or, alternatively, we could make slightly curved beds on a mobile frame. Push a button and the mattress is gently shifted side to side in a rocking motion. Rocking you quickly to sleep, and then slowly stopping over the course of a few hours.
We especially need this in America, where studies show that the average American really needs 3 more hours or so of sleep per night than they're actually getting.