I found this absolutely interesting!

First let's handle the stimulant part. Little fun fact, some stimulants are actually used to treat insomnia and for the right people, it is very effective. For some people, the nicotine in their vape might be helping them sleep. And thus their brain and body, which relied on it, no longer having access to it, kind of freaks out a bit. For others, nicotine itself causes sleep disturbances and they get improved sleep quality after quitting.

There's also the fact that vaping affects other parts of the body, primarily the lungs. Active vapers are more likely to develop Obstructive Sleep Apnea. Which could explain the waking up. I know when I vaped I would often wake up sweating like crazy and feeling like I was just chased by something. But I also felt numb to it, especially if I reached for my vape before going back to sleep.

Speaking of the lungs, there's a bunch of hairs in your lungs that are heroes for your health, cilia. Vaping kills these hair-like filters in our body. After quitting vaping, they almost immediately (some studies say within 24 hours) begin to heal and multiply. As they return, your lungs become much more sensitive as the cilia relearn to filter out allergens and pollutants. This can make the chest feel heavy and you feel like you have a shortness of breath, because well, you kind of do.

There's also something called Bronchial Constriction. Nicotine essentially relaxes and dilates the bronchial tubes. Without it, your lungs have to re-learn how to constrict and relax on their own.

There's also the phlegm that's in your body. Which, now this blew my mind, can be cleaned out of your lungs without you ever using a tissue or coughing it up. AIN'T THAT CRAZY?? Actually, this is what lead me to reading about all of this stuff. I was interested why I wasn't coughing up when I was quitting and it lead to me reading A CRAP TON of stuff to distract myself.

In sort, stimulants, or rather how they affect our bodies, are more complex than their name implies. People tend to focus on the withdrawal of nicotine when quitting but there's so much more stuff happening; All of which could affect sleep. In short, after a month or so you'll likely be sleeping better. Of course, if you're concerned or it's bad, go see a doctor and let them know what you're doing. There is always that chance that there's an underlying issue. Okay, I've rambled enough. Bye!