Dreaming of being at a sleepover with a group of girls and witnessing their deaths one by one can be a disturbing and unsettling experience. This dream may symbolize feelings of isolation and loneliness, as you are the only survivor in the end. It could also represent a fear of losing those close to you or being left behind by your friends. The sleepover setting may suggest a desire for connection and belonging, but the deaths of the girls may reflect a sense of betrayal or abandonment. Alternatively, this dream could be a manifestation of your subconscious processing the idea of mortality and the inevitability of death. It may also symbolize the end of a certain phase or relationship in your life, as the girls represent different aspects of yourself or people in your life. Overall, this dream may be a reflection of your fears, anxieties, and insecurities, urging you to confront and overcome them in order to move forward and find peace.