Slightly Disturbing…or am I overthinking here :/

So my boyfriend and I spent a quite New Years Eve at my place which was cool due to the pandemic. At the end of the night we laid in bed and had a little pillow talk. He has a habit of chewing gum all of time which is fine then I thought to ask, “hon do you sleep with gum in your mouth, I hope not because I’d be highly upset if you go gum in my hair while asleep”. He said, well I’d never here the end of that plus I sleep with my daughter every night”. I responded with, “what does that have to do with you possibly getting gum in my hair”? He didn’t say anything. Not thinking to ask but it came to mind later…okay his daughter is eight years old and does he plan to have her in his bed as a pre-teen? Will he be sleeping with her when we’re married too…how does that work :/

How do I even bring this conversation up as we are getting extremely serious? Does this seem to be something I should be concerned about…