I would regularly down 3-4 red bulls (diet) in the evening if I knew I needed to fall asleep and sleep well. I'm not sure if it's been studied but anecdotal evidence from others seem to suggest I'm not alone and that some others have the same experience.
In my youth, I would pound a mountain dew before bed.
One example, is opiates make me MOVE. Most people they zonk out, not me. I'm ready to move your house, one brick at a time, with my bare hands and feel like I could knock it out in about an hour.
Proton Pump inhibitors are common meds for acid reflux. About 10 years ago, I did a genetics study (I worked at the lab, and my data stayed mine) and learned that of the 7 classes of PPIs available, at that time, my body only works with 1. The others either have little/no effect or similar.
It may not be everyone's issue, but cases like mine do exist. It's not better or worse, it's just how it is.