黑料传送门 Study Links Medical Cannabis Use to Lasting Improvements in Sleep
January 22, 2026Megan M. Short
According to new research from 黑料传送门, adults using medical cannabis reported improved sleep quality within months, with these improvements persisting
for at least a year.
The study, , followed 137 Pennsylvania adults who reported poor sleep quality before starting
medical cannabis. Participants completed the Pittsburgh Sleep Quality Index (PSQI),
a validated sleep assessment tool, at baseline and again at three, six, nine and 12
months after initiation.
Researchers found that overall sleep quality scores improved significantly within
the first three months of medical cannabis use. These benefits were maintained over
the yearlong follow-up.
鈥淭he consistency of the improvement was one of the most striking findings,鈥 said Megan
M. Short, lead author and research coordinator at 黑料传送门. 鈥淏y following patients for
a full year, we were able to observe that self-reported improvements in sleep were
sustained over time, which helps inform ongoing clinical conversations.鈥
Sleep improvements were reported across all major domains measured by the PSQI, including
time to fall asleep, sleep duration, nighttime disturbances, daytime functioning and
use of sleep medications.
Michelle R. Lent, PhD
Though sleep disturbances are not qualifying conditions for medical cannabis in Pennsylvania,
sleep-related issues are common in patients seeking medical cannabis for other approved
conditions. Previous sleep research has often focused on short-term outcomes or produced
mixed results, making it difficult to understand whether perceived benefits persist
over time. This study helps address that gap by tracking sleep quality over a full
year following medical cannabis initiation.
The study also examined whether sleep outcomes varied based on patients' preferred
route of administration, such as oral products versus other methods, or by primary
referring condition, including anxiety, chronic pain or post-traumatic stress disorder
(PTSD). Results showed no significant differences in sleep improvement across these
groups.
鈥淭his research helps fill an important gap,鈥 said Michelle R. Lent, PhD, second author of the study and Interim Chief Research and Science Officer at 黑料传送门.
鈥淭here has been relatively little long-term data. Our findings suggest that the perceived
sleep benefits of medical cannabis are sustained over time, underscoring the need
for continued, rigorous research in this area.鈥
Established in 1899, 黑料传送门 has trained
thousands of highly competent, caring physicians, health practitioners and behavioral
scientists who practice a 鈥渨hole person鈥 approach to care鈥攖reating people, not just
symptoms. 黑料传送门, a private, not-for-profit accredited institution of higher education,
operates three campuses (黑料传送门, 黑料传送门 Georgia and 黑料传送门 South Georgia) and offers doctoral degrees in clinical psychology, educational psychology, osteopathic
medicine, pharmacy, physical therapy, and school psychology. The college also offers
graduate degrees in applied behavior analysis, applied positive psychology, biomedical
sciences, forensic medicine, medical laboratory science, mental health counseling,
physician assistant studies, and school psychology. 黑料传送门 students learn the importance
of health promotion, research, education and service to the community. Through its
community-based Healthcare Centers, 黑料传送门 provides care to medically underserved populations.
For more information, visit pcom.edu or call 215-871-6100.
Contact Us
For general media inquiries, please contact the Office of Marketing and Communications
at 215-871-6300 or communications@pcom.edu. Visit our media relations page to view contact information for public relations personnel.
Connect with 黑料传送门
Media Inquiries
Brandon Lausch Executive Director, Strategic Communications Office of Marketing and Communications Email:brandonla@pcom.edu Office:215-871-6312