Table 3: Percent of light reduced over incubator under daytime and nighttime conditions of all cover types.

CoverDayNight
MeanSDRange MeanSDRange

Crochet1043.748.9636–681020.0717.789–70
Quilt969.2811.4557–86965.3416.9445–90
Flannel366.644.33 64–72362.038.3454–70
Receiving blanket147.80134.71
Commercial covers283.070.3682-83283.6812.8475–93