Sleeping less comes by meditating more and increasing bioelectricity, constantly charging yourself.
In the same post you quoted, Blitzkreig stated that:
8 hours of sleep does seem like a long time, but I wouldn't view it as completely unproductive. You are recharging and healing at this time, and therefore it is important for a consistent, long-term effort.
While, of course, if you charge yourself through meditation you wouldn't need that much sleep, and it will come
naturally. I can give my own experience as an example here, when I was meditating more than 8 hours per day, I only needed 4-5 hours of sleep, and I was basically waking up in the middle of the night, so to not waste my time I was doing RTRs or something else. Compared to now, when I do meditate only ~3 hours per day (I have to study a lot, don't judge me), I need about 7 hours of sleep.
So the amount of increased bioelectricity plays an essential role here. As well as the energy of the planets. For example the energy of the moon wakes me up in the night sometimes and I cannot sleep anymore, so I only sleep 3 hours in those days and I feel great. Maybe that's also why in what you quoted Blitzkreig said about using planets' energy for decreasing the time our body needs sleep, as it interferes with our natural vibration in the body.
So, in conclusion, if you want to sleep less, meditate more, but any working for that would only cause you harm if you don't take this all gradually and get used to higher levels of vibration in a healthy manner. This will shorten the amount of time you need to sleep, and you'll see this coming naturally, but until then, just enjoy your sleep time.
Academic Scholar said:
What spells, workings and affirmations should someone use if they want to sleep only one hour every night and have that be enough?
This is where I first got the idea from:
Blitzkreig said:
This brings up the idea of doing some sort of working, likely with the sun or mars, such that your body rests faster and/or does not need as much sleep. Imagine even what 1 or 2 whole hours, let alone 3 or 4, added to your day can do. In most cases, this could be devoted entirely to meditation. Of course this may require a lot of energy for the working, but the end result seems worth it.
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