If there is no written agreement between the employee and the employer as to the method of calculating the regular rate of pay in advance of performing the work, the employee's regular rate shall be calculated using the "weighted average" method described above in 1.8.3(A).
When an employee's shift is less than 24 hours, periods when s/he is permitted to sleep are compensable work time, as long as s/he is on duty and must work when required. Only actual sleep time may be excluded, up to a maximum of 8 hours per workday. When work-related interruptions prevent 5 hours of sleep, the employee shall be compensated for the entire workday.
7 CCR 1103-1-1