CNR1 and sleep disorder: A summary of CB1R and CB2R ligands, namely antagonists ABD459, SR141716A, and LY320, 135; CB1R agonists (WIN 55, 212-2), synthetic THC (Dronabinol), and CB1R (AM251) or CB2R antagonists (AM630), used in the treatment of sleep disorders, can be found in Table 1.