So sometimes, usually when I'm not on a lot of sleep or I have a hangover, I'll try to nap and when I close my eyes I'll see random images pop up. Does anyone else experience this? It's only when I'm really tired and trying to sleep but then I can never nap. I'm worried that this isn't normal and a sign that I might lose reality or go into psychosis. I can open my eyes and continue on with my day and not hallucinate but it's just strange that it happens when I close my eyes.