The aim of this study is to determine the relationship between diet quality and overall sleep quality, sleep duration, and presence of insomnia in the university-term female. This cross-sectional study was conducted on 412 female university students aged between 19 and 24 years in Turkey. The participants’ socio-demographic characteristics, anthropometric measurements, the Pittsburg Sleep Quality Index (PSQI), sleep duration and Insomnia Severity Index (ISI) and three days food intake records were taken. Healthy Eating Index (HEI)-2015 was used to assess diet quality. 64.1% of the participants had poor sleep quality and 28.4% of them were found to have insomnia. Higher PSQI scores were significantly associated with lower intakes of protein (β = − 0.53 ± 0.08% kcal, p < 0.001), but higher intakes of total energy (β = 61.01 ± 8.73 kcal, p < 0.001), total fat (β = 0.29 ± 0.13% kcal, p < 0.05) and saturated fat (β = 0.25 ± 0.08% kcal, p < 0.05). Insomnia partcipants had an avarage of 240.6 kcal higher energy intake, and 1.6% lower energy consumption via proteins compared to those with no insomnia (p < 0.05). Better sleep quality was associated with greater total diet quality as well as higher scores of total vegetables and dairy but higher refined grains, added sugar, saturated fat scores. Higher total scores on the ISI were related to lower scores of total diet quality (β = − 0.66 ± 0.16, p < 0.001), total vegetables (β = − 0.08 ± 0.02, p < 0.001) and dairy (β = − 0.11 ± 0.04, p < 0.05). This current study found that poor sleep quality and the presence of insomnia were associated with lower dietary quality and higher energy intake in females at university period.

这项研究的目的是确定饮食质量与整体睡眠质量，睡眠时间和大学学期女性失眠之间的关系。这项横断面研究是针对土耳其的412位年龄在19至24岁之间的女大学生进行的。参加者的社会人口统计学特征，人体测量学，匹兹堡睡眠质量指数（PSQI），睡眠时间和失眠严重度指数（ISI）以及三天的食物摄入量记录。健康饮食指数（HEI）-2015用于评估饮食质量。64.1％的参与者睡眠质量较差，其中28.4％的人患有失眠。较高的PSQI分数与较低的蛋白质摄入量显着相关（β  = − 0.53±0.08％kcal，p <0.001），但摄入的总能量更高（β  = 61.01±8.73 kcal，p  <0.001），总脂肪（β  = 0.29±0.13％kcal，p  <0.05）和饱和脂肪（β  = 0.25±0.08％kcal，p  ＜0.05）。与没有失眠的人相比，失眠的参与者平均摄入能量高240.6 kcal，通过蛋白质消耗的能量减少1.6％（p  <0.05）。更好的睡眠质量与更高的总饮食质量以及更高的总蔬菜和奶制品得分有关，但与更高的精制谷物，增加的糖分，饱和脂肪得分有关。ISI的总分越高，饮食质量总分越低（β  = − 0.66±0.16，p  <0.001），蔬菜总量（β  = − 0.08±0.02，p  <0.001）和乳制品业（β  = − 0.11±0.04，p  <0.05）。这项最新研究发现，大学时期女性睡眠质量差和失眠与饮食质量降低和能量摄入较高有关。