1. Center for Advanced Research in Sleep Medicine, Hôpital du Sacré-Cœur de Montréal, Montreal, Canada;
2. Department of Medicine, Université de Montréal, Montreal, Canada;
3. Department of Psychiatry, Université de Montréal, Montreal, Canada;
4. Division of Anaesthesia, Cambridge University, Cambridge, United Kingdom;
5. Critical Care, Hôpital du Sacré-Coeur de Montréal, Montreal, Canada;
6. Department of Psychology, Université de Montréal, Montreal, Canada