Actually the dreams are most likely happening from reduction of MAOI's ingested from cigarettes, not found in e-juice. A withdrawal symptom. Can also cause insominia, itching, muscle twitching, weird dreams, digestion problems including heartburn, ........, heart palpitations. People with severe sypmtoms usually use snus or dissolvables to replace MAOI's. These are the component for the euphoric effect we crave. Nicotine may prove less an integral part of NRT's, MAOI's moreso. Or a balance of each gradually reducing amount of ingestion. Careful use of anti-depressants??
Anyway, if there's any truth to MAOI, then I refer back to the theory that it isn't all about the nicotine. Why would it be so easy to alter your nic intake if that was not the case.
Really late in jumping into this, but this connection of patches to dreams grabbed me. Nic acts very similarly to acetylcholine (ACH). Anything that boosts levels of ACH in the brain, or mimics ACH,
will increase dreams, as well as memory (Which I believe dreaming is related to) and higher complex thinking, like math. There are supplements that increase ACH. the most common one is high-strength lecithin. You use to be able to buy choline bitatrate. Take a bunch of it every day and you will get the same dreams, even the same
kind of dreams. We called them choline dreams: vivid, often involving a chase, running, and a high level of emotion, colors, smells, tactile effects. The boost in memory and intelligence when taking a lot of lecithin is quite noticeable. And the dreams were a side-effect that told you maybe you are taking too much.
The dreams I've had from nic-at-night

are the same kind. To me they are
clearly from nic's ACH-mimicking effects, and not MAOI's. The half-life of nic is very short, so have a smoke before going to bed and the nic is almost all gone by the time you hit your dreaming cycle. The patch is the gift that keeps giving, even when you don't want it to, and will keep the nic level high all night long.
The MAOI angle is a logical one, in many respects, but I don't think it is true. This to me is a purely nic effect. And the absorption of nic with PVs is much slower and more sustained, so vape up for a while before sleeping, and the nic level will remain high for much longer than getting the nic from an analog. If anything, I would think the MAOIs would
inhibit dreaming, since they tend to have a somewhat sedating effect.
Also, I have had very
vivid dreams with nic, but not
lucid dreams that I recall. Lucid dreams are technically where you are dreaming, you know you are dreaming, and you can thus control everything in your dream. Really great to have, but I have not had any of those since vaping, although I've had lots of amazing dreams, VERY choline-dream-like, some of which I would not want to repeat.