Never sleep ritual/spell

I know that sleep is very important to the human body, however im curious to know weather there are any rituals or spells that anyone has cast that have enabled the caster to literally change their anatomy so to speak?

nope, no way to change anatomy. that is pure fluffomancy.

you can stay up for a long time, days if you have to, caffeine is better than spells for that I would think.

to cast well, you shouldn't be exhausted. that being said, you can enter into an altered state of consciousness through sleep deprivation. but it aint pretty or healthy

Good Luck!

~Thor

Whilst true that you can potentially stay up without sleep for a very long time if you choose to do so then I highly recommend having at least one other person there with you whom you agree to with that you will sleep if they think you should. As said above it can be particularly unhealthy and having a few people help you through it, to stop you dozing off when alone and to make sure you stay healthy, is just common sense.

As for creating a way to stay awake indefinitely without the effects of sleep deprivation. Very sadly the answer is no, humans require sleep and no mater how much extra work we have to get done sooner or later it's going to catch up with us and no amount of effort going to stop that.