Insomnia (Bengali: ইনসমনিয়া) was a rock band based in Kolkata,West Bengal. The band's repertoire included both English and Bengali songs. The band has an album each in English (Cry of the Spirit - self released) and Bengali (Proloyer Shomoye - Asha Audio). Insomnia were also quite adept at executing live music for theatre, being part of the act itself, in plays such as Peacewards (directed by Jayant Kripalani, produced by Red Curtain Productions, based on monologues written by Manjula Padmanabhan), a 3rd theatre version of Rokto Korobi (written by Rabindranath Tagore, conceptualised by Badal Sarkar, directed by Parnab Mukherjee, starring Sudipta Chakraborty) and numerous other plays. "Opekkha" from their Bengali album Proloyer Shomoye was part of the original soundtrack of the first Bengali sex comedy movie Aamra (produced by Venkatesh fims, directed by Mainak Bhaumik, cast - Parambrata Chatterjee, Jisshu Sengupta, Rudranil Ghosh, Nilanjana, Ananya Chatterjee, Kaushik Ghosh, Rajatava Datta, Momo).