AE	Adverse event
AOMT	Acetylserotonin-O-methyltransferase
ASD	Autism spectrum disorder
CBT	Cognitive behavioural therapy
CSF	Cerebrospinal Fluid
DLMO	Dim light melatonin onset
DMT	N,N-dimethyltryptamine
DSPD	Delayed sleep phase disorder
EMA	European Medicines Agency
G-BA	Joint Federal Committee (Gemeinsamer Bundesausschuss)
Non24	Non-24 syndrome; deviation from 24 h circadian rhythmicity
OL	Off-label
RCT	Randomised controlled trial
SE	Sleep efficiency
SMS	Smith–Magenis syndrome
SO	Sleep onset
SOL	Sleep onset latency
TST	Total sleep time
WASO	Wake after sleep onset = awakenings; number and duration