My first thought was
Hyacinth Bouquet talking about her son and I don't even like Keeping Up Appearances! Then I think of
Sheridan Smith, the actress, (and I like a lot of shows she's been in) so it has good associations as a girl's name too.
Generally I like names which begin with a "Sh" sound. As a middle name it's definitely fine and works in a combo with
Freya.