I keep thinking about this because I’m Tammy’s age, and I’ve gone into respiratory arrest in the middle of the night, and my kids had to call an ambulance (I was very sick with a respiratory infection and only have one lung due to resection of tumors, as well as asthma). When you can’t breathe (from a coughing fit) you wake up, you get help. You certainly would shake or kick the person next to you in bed, and show them that they need to call 911. If one collapsed on the floor, it would make a loud noise and the person near you would hear it and wake up alarmed and get help. Chad just say Tammy died peacefully in her sleep, but there is nothing peaceful about suffocating from a lung infection or asthma- I suppose unless you are heavily drugged with respiratory depressants. What I wonder is if Tammy was suffocated, by Chad, will the autopsy be able to show if she struggled, etc. at this point, or would it look the same inside as someone who suffocated from say, an asthma attack?