Some people put ear plugs in their dreams because they feel like they need to block out the noise around them. This could be due to some type of personal or professional stressor. In other cases, it could be because of a relationship issue, career problems, or just general unhappiness with life.
A lot of people use earplugs as a symbol for protection and safety in their dreams. This is often related to a feeling of vulnerability that we might feel when we wake up from our sleep and realize what’s going on around us.