 SCP-072 is a shadowy and translucent projection which resembles a 0.9 meter long hand, the fingers of which taper to a sharp point. Detailed recording of SCP-072 is difficult, as it does not manifest at light levels above 5 lux. Instances of SCP-072 have only been observed to manifest when a human, hereafter referred to as the subject, enters REM's sleep. All located in a bed infected by SCP-072, it leaves a foot or feet exposed to open air. If these conditions are satisfied, SCP-072 will emerge from the foot of the bed and appear to use its pointer finger to tap on the subject's foot until they awaken. Subjects have reported that at this point they were unable to move, showing symptoms similar to sleep paralysis. This continues as long as SCP-072 is visible.