Breathing with mouth open

Sheliehj • 24. 1 baby in heaven (May 2018). Mommy of a sweet baby boy (March 2020). Faith. Trust. Baby dust.

My baby is 7 weeks old and he sleeps with his mouth open. Should I be concerned?

I didnt think much about it but yesterday my MIL pointed it out as a weird thing and I look it up online and found horrible things (mostly about sleep apnea and not getting enough oxygen). I think I wont sleep tonight🙁