Id say it would be all of the above. if you think about it our bodies mentally and physically need to rest so they can be "charged" and ready for theday. if you dont sleep you will be drowsy and not to be able to focus on any of the options
Pretty sure it could be head circles because your neck is really delicate and if something happens, you could get seriously hurt or disabled from moving. (Sorry if I’m wrong, I’m no doctor)
To make sure there are no other dangers in the vicinity of the victim.