Most G6 sensors are good for us. But not all. We sometimes get a bad one. Bad for who knows what reason and frankly I don’t care. User error, bad site selection, pressed the button wrong, manufacture error, shipping damage, I don’t care.
Until a meter check confirms a good sensor then I am not going to trust it.
Sometimes we do start a sensor at night.
Which means I will set a few alarms on my phone and get up during the night and do a few meter checks.
With the Basal-IQ, we run MUCH lower at night then we previously did. It is not uncommon to be mostly straight and level (with small waves) about at 80 throughout the night as the Basal-IQ kicks in and out and maintains the BG. Obviously, this requires a good data signal.
Point being there is much less room for error as opposed to when we might be running 140~160 at nighttime specifically to allow for a very wide range of BG movement.
So, I prefer not to start a sensor at night.
If it seems the most practical based on what else is going on (life still happens) then I will wake up a few times during the night to check that everything is OK.