This is the worst pump ever. I've tried using it for several months and have not had ONE full night's sleep. It will constantly alert you all night long about NOTHING important enough to make you lose sleep. There is a reason a Medtronic employee told me people call this pump the "Black Terrorist". Well, it's black...and it will terrorize you constantly! I even had my doctor adjust it...didn't help. The only way to get any rest is to turn off the Auto feature which is why anyone would buy this pump to begin with...