How can I tell if my mom was trying to groom me as a kid...

Yeah but if she genuinely didn’t notice it I would hate to admit that I was naturally so predatory at such a young age. Like imagine your adult son he groped you in your sleep when he was kid?

The key to this all is that you were a child. She could have scolded you at the time, but she didnt. Like you said, no one sleeps through vigorous action on erogenous zones. You just have to segue into the conversation about sleeping in the same bed and its ez mode. Be creative son