Auntie Tabitha is about to help us get the best sleep of our lives! Tabitha Brown , known for her soothing social media videos, has just inked a deal with the mental wellness app, Calm to use her wit to help users get a good night of rest. The new partnership includes, “Slowing Down With Tabitha Brown,” a sleep story co-authored and narrated by Brown for subscribers to listen to for a wind down at night.   View this post on Instagram   A post shared by Tabitha Brown (@iamtabithabrown) “Thank God for that, to be known to be comforting,” Brown told ESSENCE. “Well, it really started because people would start tagging Calm every day on Twitter and saying, ‘You know what? Give this woman a sleep story. We need to hear how to go to sleep. Her voice helps my anxiety. It calms me down,’ and I was like, you know what? That ain’t a bad idea and it aligns with everything that I’m about, just being good to yourself. Because that’s what it is. When you take the time to be calm, that means you...