What do I do?

I've been with my partner for nearly 2yrs now this October and we have a 4 months old baby boy. He's just recently moved out his mums and moved in with me 4wks ago but the problem is he snores and not just normal snores I mean foghorn loud snoring, I was aware he snored before he moved in but never heard him this loud before but we've only spent 1 night a week together before he moved in. Sometimes he will go downstairs and sleep on the couch but I can still hear him so loud as I only live in a 2 up and 2 down house. I'm literally getting no sleep at all and I'm getting up with the baby once a night, i can't sleep during the day as baby only has 3 20 min naps....I have pp depression and me not sleeping is making it worse. I've spoken to him about it but he says I'm just picking when I've asked him to try snoring aids, it all came to a head this morning when I said to him he's gonna have to move back to his mums because I can't cope any longer. He's decided to end the relationship instead and called me petty, am I wrong for asking him to move out and am I being petty?