Table 4. Data for quality of sleep.

* and ** indicate p < 0.05 and p < 0.001 respectively for Dunnett 2-sided t-test for improvement from baseline being higher than for placebo.

	Ashwagandha 250 mg/day			Ashwagandha 600 mg/day			Placebo
	N	Mean (SD)	95% CI	N	Mean (SD)	95% CI	N	Mean (SD)	95% CI
Baseline	20	5.85 (0.74)	5.50–6.20	20	5.65 (0.81)	5.27–6.03	20	5.85 (0.87)	5.44–6.26
Week 4	19	4.95 (0.70)	4.61–5.29	20	4.10 (1.29)	3.49–4.71	19	5.05 (0.84)	4.64–5.46
Week 8	19	3.79 (1.13) *	3.24–4.34	20	3.05 (1.39) **	2.40–3.70	19	4.89 (0.87)	4.47–5.32