Inclusion Criteria:  >/= 18 years old Confirmed primary brain tumor diagnosis >/= 1 month removed from radiation therapy (if applicable) Able to readily read and understand English Meeting DSM-V diagnostic criteria for insomnia as measured by the Structured Clinical Interview for DSM-5 Sleep Disorders (SCISD) insomnia subsection Cognitively intact as measured by a score >20 on the Telephone Interview for Cognitive Status (TICS) Have a stable internet connection and video-capable device for Zoom sessions  Exclusion Criteria:  Inability to attend weekly group in-person meetings Patients must also meet the inclusion criteria listed above.