BBT-I	Brief Behavioral Treatment for Insomnia
LT	Light Therapy
DSWPD	Delayed Sleep–Wake Phase Disorder
CBT-I	Cognitive Behavioral Therapy for Insomnia
RCT	Randomized Controlled Trial
ISI	Insomnia Severity Index
MEQ	Morningness–Eveningness Questionnaire
ESS	Epworth Sleepiness Scale
PHQ-9	Patient Health Questionnaire-9
DMC	Data Monitoring Committee
PMR	Progressive Muscle Relaxation
GDPR	General Data Protection Regulation
PII	Personally Identifiable Information