What I do is go full speed and body slap the bed or I take my hand with my watch(on the wrist) and hit something relatively hard(not to hard where you hurt yourself) lol
Even when fall detection is on, it's not going to detect a fall 100% of the time, and it may even misdetect a fall. I had a fall detected while sleeping. I was dreaming and I siddenly thrash my arm, which the watch interpreted as a fall. All you can do is turn it on and hope for the best result. Nothing comes with a 100% money back garentee, with the exception of a mattress from my local store. All we can do is our best to manage the chaos and randomness that is life.
