Is anyone else having problems with battery life draining very quickly?

The last couple of days I’ve had to charge my watch at least once.  I’ve charge it before bed two nights in a row and it’s dropped atleast 65% overnight on both occasions. I’ve reset my watch, made sure it’s up to date, have the factory settings and am not using any IQ apps. 

I will contact Garmin tomorrow morning but for this to happen so suddenly when my watch isn’t even six months old is concerning and wondered if it was a software issue.