Wet hair / Oiling Hair

Hello!

So I usually like to have my hair wet or damp before putting my oils in it, (I try to do this once a week to keep it sleek and growing) but I’ve been reading how wet hair can cause a bunch of bacteria and gross stuff basically, especially when sleeping with it. Wondering if I should stop wetting it before putting my oils in it???? Or if anyone has had any issues with sleeping with wet hair. I also keep it in a bonnet when doing this but that worries me even more since all the moisture is “enclosed”

I use all natural oils, coconut oil, tea tree oil, and castor oil I switch them ever so often on what mood I’m in or what I think my hair needs lol.