Hello. I was previously flying my overnight from MMMX to LIRF. As you know, today ATC schedule heads to Rome. As it was an overnight flight, of course I was sleeping, so when I woke up about 10 minutes before descending, I saw that I had gotten disconnected by the Centre ATC. The reason I saw he had disconnected me was “Unable to communicate”. To clarify things, I didn’t connect to it’s frequency because I was sleeping, not because I couldn’t
I don’t know if that’s allowed. I thought that if someone didn’t connect to a centre frequency, the ATC could just ignore it, but now I am confused. Please tell me if this is right or wrong. I had previously done lots of overnight flights and this had never happened to me, so I assume this is wrong.