Table 1.

Effects of SIN on number of sleep mice and total sleep time treated by sub-hypnotic dose of pentobarbital (28 mg/kg, i.p.)

Group	Dose (mg/kg)	No. of animals	Total Sleep time (min)
Control	0	6/12	30.8 ± 2.6
Muscimol	0.2	12/12*	47.4 ± 1.8***
SIN	20	8/13	34.7 ± 2.0
	40	10/13	40.5 ± 2.3**

Each value reflects the mean ± SEM. Where there was significant variability, the individual values were compared using Chi-square and Student’s t-test.

^*p<0.05,

^**p<0.01

^***p<0.005, compared with the control.