wifi

Hi. Just gone into Libre 2 and have set the alarms (which work) but when I go to bed, how do I silence my phone except for the Libre alarms? I've tried changing all sorts on my phone but the only way the Libre alarms work is if I leave my ringer on at night and get loads of Facebook...

Before I launch the damned thing out the window:banghead: I've got a Kindle Fire (5th generation) and have had no problems with the wifi connection, I'm a Sky user, Sky router but not IT savvy. I have my daughter visiting at the moment who has special needs, let her use it to play the games...