As a night time caregiver for my 98 year old mother, my morning sleep is the only thing that keeps me physically able to go on. I thank God that I found the cell phone jammer Call Blocker on Amazon and bought it. The plague of my existence up until now have been the infernal Telemarketers and other incessant ‘nuisance’ calls that has kept my phone ringing the entire time I’m trying to sleep. Sleep deprivation is one of the worst experiences that anyone can have and it leads to all kinds of health issues like depression, anxiety, all the way up to major heart problems. I have experienced some of these issues and I blame these callers directly for these problems. Ever since I bought and set up the call blocker, I have been able to sleep right through the morning hours and get up feeling refreshed and ready to do what I need to do before going over to take care of my mother all night.