Assertion: melatonin | /r/CapableOf | improve daytime sleep time
Facets:
value: by about 30 minutes
type: TEMPORAL
Source sentences:
text: Dosage: Take 1.8 mg to 3 mg thirty minutes prior to the desired onset of daytime sleep; melatonin may NOT lead to improved alertness during the nighttime work shift and may only improve daytime sleep time by about 30 minutes.