Lady Myra Idina Sackville was an English aristocrat and member of the Happy Valley set. Her behaviour and lifestyle scandalised upper class society.

The Happy Valley set was a group of mostly British and Anglo-Irish aristocrats and adventurers who settled in the "Happy Valley" region of the Wanjohi Valley, near the Aberdare mountain range, in colonial Kenya between the 1920s and the 1940s. During the 1930s, the group became infamous for its hedonistic, decadent lifestyles and exploits amid reports of drug use and sexual promiscuity.