Assertion: valerian | /r/CapableOf | improve the quality of sleep
Facets:
Source sentences:
text: Valerian appears to help people fall asleep more quickly and to improve the quality of sleep.
text: Further, valerian in tablets during pregnancy helps to normalize periodically increasing blood pressure, and improve the quality of sleep.
text: If taken over a longer period, Valerian accelerates the time it takes to fall asleep, and improves the quality of sleep.