Table 4. Means and frequencies of data reported in all sleep diaries.

	Sublingual zolpidem 5 mg				Oral zolpidem 10 mg
	Basal	Week 2	Week 6	Week 13	Basal	Week 2	Week 6	Week 13
Total diaries, n	139	507	912	1,203	130	520	745	897
Weekends, n (%)	48 (34)	220 (43)	395 (43)	510 (42)	42 (32)	231 (44)	324 (43)	377 (42)
Nights medication taken	-	97	93	96	-	84	95	99
Rescue dose nights	-	20	13	13	-	14	7	9
Perceived TST ≥ 6 hours	33	65*	69*	68*	23	53*	49*	54*
SOL ≥ 30 minutes	72	39	33*	35*	65	41	42*	42*
MOTN awakenings	67*	52†	41*	33*	89*	58†	48*	41*
Sleep efficiency ≥ 85%	37	64†	71*	69*	44	57†	59*	57%†

Data presented as %, unless otherwise specified.

The chi-square and z-test of column proportions were adjusted for all pairwise comparisons within a row using the Bonferroni correction. Proportions were compared between treatment groups at each phase of the protocol period.

MOTN awakenings = middle of the night awakening; SOL = sleep-onset latency; TST = total sleep time.

^*Statistically significant at p < 0.01.

^†Statistically significant at p < 0.05.