[5] At the start of 2020, Sadler had deteriorating mental health, experiences she drew from for the BBC Three and Hulu sitcom Such Brave Girls (2023) which she wrote and starred in alongside her real life sister Lizzie Davidson.
[6][7] Discussing the 2021 pilot episode, Sadler said that "everything we joke about in the show is from a place of lived experience.
It’s about three toxic, damaged egomaniacs manipulating the world and each other for their own personal gain, vengeance and glory…just like in Little Women.
"[8] Upon the start of filming the series in 2023, Sadler described the show as “a family sitcom about trauma, but it’s more about us being narcissistic losers who are pathetically obsessed with what people think about us.”[9] In April 2024, Sadler won the Emerging Talent: Fiction category for Such Brave Girls at Bafta’s Television Craft Awards.
[10] She was nominated for Best Female Comedy Performance at the Royal Television Society Programme Awards in March 2024.