Although research has established the immediate, detrimental impact of discrimination on sleep, how changes in experiences of discrimination may be related to changes in sleep duration over multiple years is less clear. This three-year longitudinal study investigated: (1) intercept-only and linear trajectories of sleep and everyday discrimination across three years of high school; (2) ethnic/racial differences in these trajectories; and (3) the associations between changes in sleep and changes in everyday discrimination. The sample consisted of ethnically/racially minoritized adolescents from five northeast U.S. public high schools (n = 329; 70% female, 30% male, 0% non-binary; 42% Asian, 21% Black, 37% Latiné; M_age = 14.72, SD = 0.54). Latent growth curve models found that both sleep duration and everyday discrimination declined linearly throughout the first three years of high school and varied by race/ethnicity. Asian adolescents reported longer sleep duration in the 9th grade relative to Black and Latiné adolescents but underwent a significant decline such that these differences were no longer significant in the 10th and 11th grades. In addition, Black and Latiné, but not Asian, adolescents reported a significant decline in discrimination from the 9th–11th grades. Although average sleep duration declined for the entire sample, slower declines in discrimination were associated with faster decreases in sleep duration. This was particularly salient among Black adolescents. The current study contributes to research on ethnic/racial disparities in sleep by highlighting that everyday discrimination can have both an immediate and cumulative detrimental impact on sleep duration.

尽管研究已经确定了歧视对睡眠的直接、有害影响，但多年来歧视经历的变化与睡眠持续时间的变化之间的关系尚不清楚。这项为期三年的纵向研究调查了：（1）高中三年睡眠和日常歧视的纯截距和线性轨迹； (2) 这些轨迹中的民族/种族差异； (3)睡眠变化与日常辨别力变化之间的关联。样本由来自美国东北部五所公立高中的少数族裔/种族青少年组成（ n = 329；70% 女性，30% 男性，0% 非二元性别；42% 亚裔，21% 黑人，37% 拉丁裔； M_年龄= 14.72，标准差= 0.54）。潜在增长曲线模型发现，在高中的前三年，睡眠时间和日常歧视都呈线性下降，并且因种族/民族而异。与黑人和拉丁裔青少年相比，亚洲青少年在九年级时的睡眠时间更长，但睡眠时间显着下降，因此这些差异在十年级和十一年级时不再显着。此外，黑人和拉丁裔青少年（而非亚洲青少年）报告称，从 9 年级到 11 年级，歧视现象显着下降。尽管整个样本的平均睡眠时间有所下降，但辨​​别能力下降较慢与睡眠时间较快下降有关。这在黑人青少年中尤为突出。目前的研究强调日常歧视可能对睡眠持续时间产生直接和累积的有害影响，从而有助于对睡眠方面的民族/种族差异的研究。