Abstract Introduction Food insecurity is an issue of socioeconomic disadvantage and is increasingly recognized as a key risk factor psychosocial stress and metabolic health. This study examined relationships with aspects of sleep health including sleep duration, quality, continuity, and control, and sleep disorders symptoms. Methods This cross-sectional study used data from the Sleep and Healthy Activity, Diet, Environment, and Socialization (SHADES) study of working-age adults ages 22-60 (N=1003). Food insecurity was assessed using items regarding: worry that food would run out, food would not last, and inability to afford healthy meals. Each item was scored 0-2 and total scores ranged from 0-6. Sleep-related variables included habitual sleep duration, Insomnia Severity Index, Brief Index of Sleep Control, Epworth Sleepiness Scale, self-reported habitual sleep latency and wake after sleep onset (WASO), nightmares, restless legs symptoms, STOP-BANG, and statements indicating that medical health and/or stress interfere with sleep. Covariates included age, sex, race/ethnicity, education, insomnia, and shiftwork. Results Greater food insecurity was associated with an increased likelihood of being a very short (<5h) sleeper (RRR=1.23, 95%CI[1.08,1.04) or short (5-6h) sleeper (RRR=1.15, 95%CI[1.05.1.25]), as well as having mild (RRR=1.28, 95%CI[1.16,1.41]) or moderate/severe insomnia (RRR=1.38, 95%CI[1.24,1.54]). Those with higher food insecurity perceived less control over sleep (B=-0.11, 95%CI[-0.14,-0.07]), more sleepiness (B=0.40, 95%CI[0.23,0.57]), longer sleep latency (B=2.24, 95%CI[1.09,3.38]), more WASO (B=1.80, 95%CI[0.09,3.51]), and more nightmares sometimes (RRR=1.13, 95%CI[1.04,1.23]) or often (RRR=1.23, 95%CI[1.07,1.40]). Participants were more likely to report uncomfortable sensations in their legs at night and needing to move legs to alleviate discomfort >3 times/week (RRR=1.33, 95%CI[1.17,1.51] and RRR=1.27, 95%CI[1.11,1.45], respectively). They also experienced a higher STOP-BANG score (B=0.09, 95%CI[0.05,0.13]) and were more likely to either agree or strongly agree that medical symptoms (RRR=1.30, 95%CI[1.15,2.47]l and RRR=1.34, 95%CI[1.15,1.57], respectively) and stress (RRR=1.88, 95%CI[1.31,2.69]l and RRR=2.16, 95%CI[1.51,3.10], respectively). Post-hoc analyses showed that most of these relationships were consistent across all 3 components of food insecurity. Conclusion Food insecurity was associated with worse sleep health, including risk for insufficient sleep, insomnia, sleep apnea, restless legs, and nightmares. Future research should investigate if efforts to reduce food insecurity can help improve sleep health and other associated outcomes. Support (If Any)