Sri Aurobindo
Letters of Sri Aurobindo
Volume IV - Part 3
Fragment ID: 14703
You must not try to avoid sleep at night – if you persist in doing that, the bad results may not appear immediately, but the body will get strained and there will be a breakdown which may destroy what you have gained in your sadhana.
If you want to remain conscious at night, train yourself to make your sleep conscious – not to eliminate sleep altogether, but to transform it.