Assertion: baby | /r/CapableOf | sleep on their back
Facets:
Source sentences:
text: According to the Sids and Kids website, babies who sleep on their back tend to roll onto their tummy later than side sleeping infants.
text: Because it's now recommended that babies sleep on their backs to reduce the risk of sudden infant death syndrome (SIDS), the number of babies developing flat head syndrome is definitely on the rise.