Table 1.

Demographic and clinical characteristics (N=173)

Domain	Variables	Mean (SD) / N (%)
Demographic Characteristics	Age	60.35 (16.07)
	Male (%)	113 (65.3%)
	White	110 (64.6%)
Clinical Characteristics	Charlson Comorbidity Index	2.45 (1.52)
	Body Mass Index	30.72 (8.03)
	NYHA Classification
	I	5 (2.9%)
	II	95 (54.9%)
	III	61 (35.3%)
	IV	12 (6.9%)
	Bodily Pain	8.02 (2.72)
Nighttime Sleep Characteristics	Sleep Duration
	Sleep Duration – PSQI (min)	387.10 (100.5)
	Total Sleep Time – ACT (min)	378.7 (88.6)
	Total Sleep Time – PSG (min)	323.6 (96.6)
	Sleep Continuity
	Sleep Efficiency – PSQI	80.07 (17.70)
	Sleep Efficiency – ACT	76.74 (12.86)
	Sleep Efficiency – PSG	71.01 (16.25)
	Sleep Fragmentation – ACT	42.24 (21.27)
	Sleep Latency – PSG	20.92 (27.06)
	Sleep Latency – ACT	29.36 (37.84)
	Sleep Quality
	Sleep Quality – PSQI	1.39 (0.85)
	Insomnia Symptoms Total (DIMS)	1.73 (1.38)
	Frequency of Sleep Medications
	None	133 (76.9%)
	Less than Once per week	5 (2.9%)
	Once or Twice per week	5 (2.9%)
	Three or More times per week	30 (17.3%)
	Pain Medications
	Acetaminophen	29 (16.8%)
	Non-Steroidal Anti-Inflammatory	4 (3.31%)
	Gabapentin	6 (3.47%)
Daytime Sleep Characteristics
	Daytime Sleepiness (ESS)	8.31 (4.34)
	Fatigue	29.80 (14.62)
	Frequency of Naps over 4 days	2.72 (2.41)
	Snooze Time – ACT	17.61 (18.38)

Note. NYHA: New York Heart Association, PSQI: Pittsburgh Sleep Quality Index, ACT: Wrist Actigraphy (3 ACT nights average), PSG: Polysomnography (1 PSG night), ESS: Epworth Sleepiness Scale