Assertion: melatonin | /r/HasProperty | taken 30 minutes
Facets:
value: before bedtime
type: TEMPORAL
Source sentences:
text: A: Most scientific research on melatonin takes one of two approaches: either melatonin is taken 30 minutes before bedtime, or melatonin is taken at the same time every night (generally 30-60 minutes before your typical bedtime).