NCT04585425.

Study name	Public title: music for sleep‐onset insomnia Scientific title: god nat – god dag. A randomised controlled trial of bedtime music as early intervention for sleep‐onset insomnia
Methods	Design: RCT
Participants	Sample: adults with sleep‐onset insomnia Sample size: 70 (estimated)
Interventions	Intervention: music and sleep hygiene Control: sleep hygiene alone
Outcomes	Insomnia severity measured with the ISI pre–post intervention Sleep quality measured with the PSQI pre–post intervention Sleep‐onset latency measured with the PSQI subscale pre–post intervention Objective sleep measured with polysomnography and actigraphy pre–post intervention
Starting date	September 2021 (estimated)
Contact information	Name: Kira Vibe Jespersen E‐mail: kira@clin.au.dk
Notes	Funding: Sygekassernes Helsefond