1-3 The Effect of Pillowcase Impregnated with Cedrol on Sleep

Our study aimed to investigate the effect of pillowcase impregnated with Cedrol on sleep. Cedrol is a faint odor component and has sedative effects such as enhanced the activity of parasympathetic nervous system, inhibition of the enhanced activity ofsympathetic nervous system and lessening mental strain. Healthy female (n=12) who took 20 or more minutes to fall asleep or suffered from long sleep onset participated the study. Their sleep variables were recorded by sleep log and activity logger (Actigraph; Mini-Mitter) for consecutive fourteen days. We set randamized cross-over two conditions; participants slept using pillowcase 1) without Cedrol (7 days) and 2) with Cedrol (7 days). Well-controlled seven participants' data were analyzed. No one noticed the scent of Cedrol. Objective sleep variables estimated by activity showed significant difference between conditions, while subjective variables showed no differences. When participants slept with Cedrol, sleep onset was shorter (t(6)=2.92, p