"Insomnia" is a song by American singer Daya, released as a single on March 8, 2019, through Interscope Records.

[2] The song was produced by Oscar Görres, and its music video was released on March 26, 2019.

Daya described the song as a "gritty club pop anthem about missing the person you love".

"[3] Paper described the song as a "nervy, heart-racing bop with a jittery beat (a little reminiscent of "Disturbia") about being unable to sleep without an absent lover".

[4] The music video was directed by Nick Harwood and released on March 26, 2019.