Complex sentence: After Rod's funeral, Nancy's mother Marge insists on taking Nancy to a dream clinic to get her psychological help, while there, she has another violent nightmare and awakens with a deep gash in her arm.
Split into simpler sentences: After Rod's funeral, Nancy's mother Marge insists on taking Nancy to a dream clinic to get her psychological help. While there, she has another violent nightmare and awakens with a deep gash in her arm.