Perhaps -- but your list of benefits matches a list of typical benefits of meditation as well. And falling asleep while meditating isn't terribly uncommon, esp

Perhaps -- but your list of benefits matches a list of typical benefits of meditation as well. And falling asleep while meditating isn't terribly uncommon, especially when you're tired. When I first started meditating, it was a lot more than 1 out of 5 times for me. I'm willing to overlook that every dictionary I've checked includes sleep as an essential part of what defines napping, since they all suck at defining meditation. To my mind, if we take successfully falling asleep out of the definition, a nap would still mean lying down, closing your eyes, and not engaging in a specific mental practice, but rather letting the sense of sleepiness overcome you. You might fall asleep, or you might just lie there, consumed in sleepiness for 20 minutes. As soon as you start an exercise to control what your mind/attention does or does not do, however, you're getting into meditation territory: directing your attention to specific parts of your body and willing them to relax, directing your mind to relaxing thoughts, directing your mind away from distressing thoughts, and trying to culture a state where your mind drifts freely all qualify as meditation techniques to me. I think intentions also matter. If you goal is to fall asleep for a while, then you probably napped, even if you didn't manage to fall asleep. If your goal is to let your mind and body relax and refresh, without preference to whether sleep happens or not, then that's meditation to me.