Can a sleeper hold eliminate you?
This in itself is not lethal, but the construction of both carotid arteries decreases the oxygenated blood available to the brain. It’s completely harmless if the choke is released early, but it can eliminate if the choke is held tight for 30 seconds or more.
Is sleeper hold dangerous?
A sleeper choke hold slows blood supply to the brain and causes the person being choked to pass out. It is an incredibly dangerous move that should only be used in extreme situations or under the watch of a martial arts referee or expert.