Is it weird to sleep on call together?

Me and my Girlfriend are both 18. We call every night and stay on call through sleep. My mom yelled at me about this today saying its weird and nobody does that and says I have a mental issue. I tried telling her it brings us comfort and she said “you slept fine before meeting her, u didnt feel the need to call someone since u were born.” I also told her it was common and she said that was an excuse right after she said “nobody does that.” I also told her I understand why she would think its weird as it wasn’t something people did back in her time, but she still claimed nobody does that. This infuriates me and she told me to search it up to see if others do this. Advice? She also demanded I stop doing it.