I did it for a few months on my last deployment because my phone broke and I couldn't get a new one without paying a shit ton.
It was peaceful. It was a great release of stress because my chain of command couldn't reach me whenever they wanted to text or call. I loved it so much I kept up with that - I flat out refused to join any group chats that they use to pass info.
Possibly from allowing sunlight into the building which heats the interior. Air conditioning must work extra hard to overcome the heat.