<![CDATA[The need for rest and sleep may only be fulfilled somewhat, as experienced by students in Islamic boarding schools. The tight study hours in Islamic boarding schools cause students to pay less attention to rest and sleep. Lack of fulfillment of rest and sleep needs is thought to have an impact on the emergence of physiological and psychological disorders, one of which is anemia. This study aims to explain the relationship between sleep quality and the incidence of anemia in MTs students at the Al-Fauzan Lumajang integrated Islamic boarding school. This research uses an analytical observational design with a cross-sectional approach. The sample in this study consisted of 121 respondents, whom the researchers selected using simple random sampling techniques. Data collection uses the Pittsburgh Quality Sleep Index (PSQI) to measure sleep quality and the Hb meter to measure the incidence of anemia. Data analysis used the Pearson chi-square test. The results of measuring the sleep quality of MTs students at the Al-Fauzan Lumajang Islamic boarding school showed that 92 students, or 76% of the total respondents, had poor sleep quality, and 29 students, or 24% of the total respondents, had good quality. The results of measuring the incidence of anemia showed that 99 students, or 81.8% of the total respondents, had anemia, and 22 people, or 18.2% of the total respondents, did not experience anemia. The results of data analysis show a significant relationship between sleep quality and the incidence of anemia in MTs students at the Al-Fauzan Lumajang integrated Islamic boarding school with ρ-value=0.000<0.05. The results of this study show the importance of paying attention to students' sleep quality in preventing and treating anemia. Sleep improvement measures can be implemented in Islamic boarding schools to improve students' sleep quality and reduce the incidence of anemia.]]>
