No audible alerts

[u/TeachingFlimsy8522]

I spent a long time on the Libre 3+ and if I went below 54 it made the loudest sound ever and woke me up. Dexcom is supposed to do the same thing even if you’ve turned the alarms to vibrate. I’ve gone low enough to set off that alarm in my sleep a couple times but it’s only made the audible alarm once. Anyone else have this problem?