Sleep specialists recommend that short naps of no more than 15 minutes can have a beneficial effect on our energy levels and alertness. Any longer than that sees us getting into a deeper level of sleep which makes it harder to wake up without feeling drowsy.
But I would like to propose a different, or perhaps complementary practice. Why not spend 15 minutes each day being awake? I mean really awake. The practice of zazen, of seated meditation, is not an exercise in relaxation as such, and is certainly not some kind of dream-like state. It is simply the practice of being awake, of being alert to the world around us, of being receptive to everything without devouring it, of open-eyed stillness in the face of whatever is around us. It is not the shutting-off of thoughts and not a retreat from the world but a simple exercise of attention. As such, it is, at the very least, a way of expressing our capacity for wakefulness and a way of strengthening that capacity.
The term wakefulness has synonyms in the religious vocabulary of Christianity and Buddhism, and probably others too. In Christianity, the desert tradition gave us nepsis – watchfulness or sobriety – and in Buddhism, the experience of enlightenment is an experience of awakening. In fact, in the latter, I think that Soto Zen would prefer to speak of being-awake so as not to suggest a movement from one state to another – enlightenment is not a goal to attain but a present reality to express. In Christian experience, watchfulness is also a constant invitation – ‘today, if only you would hear his voice…’ – and the vivid words of Compline come to mind:
Be sober, be vigilant, for your adversary the devil as a roaring lion walketh about, seeking whom he may devour: whom resist, steadfast in the faith.
We needn’t get too into the question of ‘external’ diabolical threats to see the wisdom of these words. The fact is that we are vulnerable when we are not awake and our lack of watchfulness closes us off from others.
So don’t give up the siestas, but do think about having a time to be fully awake each day!