The rise in the prevalence of obesity has been paralleled with a decline in sleep duration over the past century 1 . Disrupted sleeping patterns are emerging as a new and potentially important risk factor for obesity 2 . Short sleep duration and poor sleep quality have been associated with increased food intake and poorer diet quality 3 . However, the association between sleep and nutritional status remains underexplored. This study aimed to investigate the relationship between sleep duration and nutritional status in 2075 participants of the cross-sectional National Diet and Nutrition Survey Rolling Programme (NDNS-RP) (2008-2012) aged 18 years and over 4 . Sleep duration was categorized into short (⩽6 h), normal (7-8 h), and long (⩾9 h). Dietary intake was assessed using 4-day estimated food diaries and nutritional status was assessed using biomarkers in fasting blood samples and/or 24HR urine. Differences between the sleep categories were analysed using ANCOVA adjusting for sex, age and energy intake. Results showed that energy intake was significantly higher amongst normal sleepers (1742 ± 520kcal) compared to short (1677 ± 569kcal) or long sleepers (1583 ± 448kcal). Normal sleep was also associated with higher fibre intake (p < 0·001), higher vitamin C intake (p = 0·04) and higher iron intake (p < 0·001) compared to short or long sleep. Data from the nutritional biomarkers showed that normal sleepers tended to have higher total plasma carotenoids levels (p < 0·001), plasma selenium (p = 0·01) and urinary nitrogen levels (p = 0·03) compared to short or long sleepers. No associations were found for plasma ferritin (p = 0·59), vitamin B1 (p = 0·31), vitamin B2 (p = 0·95), vitamin B6 (p = 0·07), retinol (p = 0·42), 25-hydroxy-vitamin-D (p = 0·35), vitamin C (p = 0·09), alpha-tocopherol (p = 0·60), zinc (p = 0·15) nor urinary sodium (p = 0·19) or potassium (p = 0·15).In conclusion, normal sleepers tended to have a marginally different dietary intake pattern as well as some differences in nutritional status compared to short or long sleepers. Our group is currently undertaking more in-depth analysis of the NDNS sleep data and dietary intake.