Findings from studies to date suggest that during KC
infants maintain stable skin temperatures, respiratory rates,
and oxygen saturation levels.61,62 Other researchers have reported
an increase in quiet sleep during KC.60,62 For example,
Ludington-Hoe et al60 randomly assigned 25 preterm
infants who were in open cribs to either a KC group
(n = 11) or a control group (n = 13). Infants spent twice as
much time in quiet sleep during KC, compared with pretest
and post-test periods, and achieved quiet sleep within 5 to
10 minutes, compared with the 30 minutes usually needed
to move from active to quiet sleep.