It’s challenging but not impossible to qualify.
You look at total accidents for similar vehicle classes where falling asleep at the wheel or other driver inattention was suspected as the reason for the crash. This doesn’t have to be just fatalities but any injury. If the data is there you could break it down by fatality, serious injury, minor injuries.
Then you compare Tesla’s rates of similar crashes.
Most of the above information should be readily available because you are legally required to carry insurance and therefore any major accident is going to generate a claim.
By the end of the data analysis it should be clear if Tesla’s safety features create a false sense of security that actually puts people at increased risk.