Worker Sleeping During His Over-Time Duty - Suspension Memo Required?

thank you all of you for giving your opinion which is to be useful to me for future.in this matter the worker are also agree for the continuous duty after his regular duty.
in this case what can i have to do for the legal producer,should i have to suggest the F.M to not giving overtime duty More then 2 overs??
Thanking You........ :)

There is a reason we are called "Human resources"
I would like to go with Mr.Umakanthan.M advice....
One should empathize and sympathize with him, anyways he was doing double shift and that too elongated hours, think of yourself in that position.
All rules and policies are fine and understood but where is the morale approach to the situation.
Issuing memo for a natural human process is what everyone means? Getting enough rest and sleep isia natural process, remember?
Talk to him and let him go, simple...!!!
HR is employees advocate