I will try the recording device and not to move.
I just find it hard because unfortunately I wake up with alarm almost every morning, and I have to shut it down.
But in other hand, imagine I try to WILD, WBTB. I wakeup after 5-6 hours of sleeping, but the only way of waking up is with an alarm. What would you do in this case? You need to remember and to shutdown the alarm.