TABLE 3.

Marginal means

Attributes and levels	Marginal means (utilities) of levels*
Sleep onset latency (10, 20, 30 minutes)	−0.1	0.3	−0.2
Awakenings (1, 2, 3)	−0.2	0.3	0.0
Wake time after sleep onset (15, 45, 60 minutes)	0.3	0.2	−0.3
Total sleep time (6, 7, 8 hours)	0.0	0.1	0.1
Hangover (none, mild, moderate)	1.6	−1.4	1.6
FDA-approved duration of use (short term, not restricted to short term, no restrictions)	−0.2	0.0	0.2
Costs, out-of-pocket per month ($20, $35, $50)	0.2	0.3	1.0

^*Marginal means represent the utilities attached to the different levels of the attributes.