Even though they're not based on real stimuli, these hallucinations can be auditory, visual, and tactile, often linked to recent experiences from the previous day.

Hypnagogic hallucinations are similar but more often occur as you’re falling asleep. This article explains how people may experience these sleep-related hallucinations and some of the behaviors ...

"Hallucinations as you describe are really really common in teenagers. There are two types, one we call hypnagogic hallucination and hypnogogic hallucinations. What this means is that one occurs ...