Table 2.

Participant characteristics according to sleep timing

	Average Sleep Timing N= 28	Late Sleep Timing N=23
	M (SD)	M (SD)
Age	33.11 (14.80)	30.04 (9.49)
Sex	13 males, 15 females	13 males, 10 females
BMI	23.7 (3.2)	26.0 (6.9)
Total Activity Counts	277794 (101620)	307752 (81372)
Sleep Onset Time***	12:32 am (0:54)	3:42 am (1:11)
Sleep Offset Time***	8:02 am (1:18)	10:47 am (1:29)
Midpoint of Sleep***	4:08 am (1:00)	7:05 am (1:17)
Objective Sleep Duration***	6:39 (0:47)	5:43 (1:11)

^***p<.001 “Average sleepers” were defined as having a midpoint of sleep <5:30 am and “late sleepers” were defined as having a midpoint of sleep ≥ 5:30 am. Missing actigraphy data: n=2 equipment malfunction, n=1 participant non-compliance, n=1 actigraphy was not conducted in the same time period as food diary, therefore it was not included. Data from one participant could not be classified as average or late sleeper, therefore only 51 participants are included in categorical analyses.