I am a single parent who suffers from nightime lows. I live in constant fear of not waking up. I have been lucky. I always feel it and do wake up, but that doesn't mean that this will always be the case. My son is ten, almost eleven. He lives with me all the time. Is it unreasonable to think that a ten year old will be able to pick up the phone and call 911 if he suddenly finds his mother unconscious? Have any of you prepared your children on what to do should an emergency arrive? I just do not want to add to my son's anexiety. We recently have been abandoned by his father, and I know that he is deeply afraid of losing his mother too. But reality is reality and not preparing him would be equally detrimental to his wellbeing as well.