Objectives: This study aimed to describe a workplace intervention to sensitize employees to sleep problems, and to evaluate the medium-term impact of this intervention on participants' sleep status.
Methods: Employees of different sites (China, France, Spain, and the United Kingdom) of a multinational company were offered a face-to-face session on sleep hygiene with a health professional using a tablet application providing feedback by email. Data on sleep status were collected through an interactive questionnaire at baseline (N = 834 participants) and at 6-month follow-up (n = 291, 34.