What Sleep disorder is the most dangerous?

In my opinon it would be Micro Naps, Narcolepsy, and sleepwalking. (I suffer all of these due to constant NightTerrors.)
MicroNaps- You fall asleep with out warning or control. Only last about a minute. You confuse reality and your dreams big time. Dangerous if your driving or operating machinery. (Also bad if your in Science class handling dangerous chemicals!) After affects: Anxiety and confusion.
Narcolepsy- You fall into deep sleep without warning or control for any amount of time. You sleep at odd times. Dangerous if your driving or operating machinery. After affects: Long blocks of time missing, groggyness
Sleepwalking- you walk in your sleep. Dangerous if you wander away from the safety of your house. (Really bad when you try to walk away from a convinent store with candy bars you didn't pay for...) After effects: confusion, makes you wayyy tired.