My mom, 65, has a ton of serious chronic issues. Her balance sucks, she's fallen a lot lately and knows she's nearing the end of her ability to live alone. Her memory is terrible, and she's a brittle diabetic with kidney disease, cardiac problems, among other things. She has spent the day sleeping today after calling my sister (in another state) and telling her that she felt it was time to end her life last night. I don't know if she actually enacted her plan, but she's been very deeply sleeping all day. I didn't try too hard to wake her until supper time, and got no response. She could have been playing opossum to make me go away. She has a DNR that was signed during a good time period. How do I tell if she's asleep or if she tried something and it got messed up? And at what point do I call an ambulance?