Natural ways of staying awake?

If this is for a school project and you are just trying to stay awake for as long as possible, I can't help you. There are substances to keep you awake, and caffeine IS natural, but you sound opposed to the use of drugs (and caffeine is also a drug). However, if this is for personal enrichment and you are trying to find a way to get more hours out of your day, I would recommend slowly changing your body's natural sleep pattern first from monophasic to biphasic, and possibly to polyphasic. Some people are successfully able to use polyphasic sleeping schedules to only sleep 2 or 3 hours a day, generally adding 3-5 hours of wakefulness a day (assuming most people sleep 6-7 hours a night).

I firstly want to state that I wouldn't suggest trying to stay awake, as it's very unhealthy to do so in the first place. The only thing I could possibly think as a proper reason is if you were trying to fix your sleeping routine, but even then, I wouldn't suggest it. There's really nothing good that can come from trying to stay awake past the normal time. Trust me! I've suffered from insomnia in the past, and it's not very nice.As far as 'natural' ways of staying awake, I can't think of anything past caffeine, however, I doubt you mean that by 'natural'. I'm afraid there is no secret body cheat-code for staying awake.

If you can't stay awake, then your body is trying to tell you something. You need sleep! If this is the purpose of a school project or something then there's caffeine (in Tea and coffee), light such as computer and TV screens. Vitamin D helps give you energy, sit in the sun if you can, or take supplements. Won't be an immediate effect.

Depending on how much you need to concentrate, I've found that loud music helps me when I need to stay awake to drive at night.

Blue light can help you stay awake! Computer and TV screens for example emit blue light which stops the production of melatonin in the brain and triggers your system to 'wake up'. Red light does the opposite.

@spiritdragon6 ..this is gonna sound crazy...but it really works...take a bucket or tub...fill it will cold water...now place that bucket or tub underneath your study table...then just dip or submerge your legs in the tub...trust me you'll not feel sleepy..and even if that is not sufficient,eat a chewing gum with it... good luck :) tell if that works..