Aldridge was born in Bahrain. After training as an Actress at the Drama Centre London, Aldridge worked in film, theatre and television as an Actress. Her first novel, Pop, published by Cape (Vintage) in 2001, was longlisted for the Orange Prize for Fiction 2002 and shortlisted for the Pendleton May First Novel Award 2002. Her second novel, Cryers Hill, was published by Cape (Vintage) on 1 March 2007.