Sleep in children is essential for growth, emotional health and cognitive function. Although it has been described that poor sleep can seriously affect learning capacity, this relationship remains unclear. The purposes were to: (1) describe sleep patterns and sleep problems in schoolchildren; and (2) analyze the relationship between sleep quality and quantity and academic achievement. This study included 330 children aged 8–11 years and who had complete sleep data from 20 primary schools in 20 towns from the Cuenca province, Spain. The Spanish version of the Children’s Sleep Habits Questionnaire was used, and parents’ educational level, and academic achievement (final grades) were measured. Analysis of covariance models was used to assess differences in academic achievement by sleep problems and sleep duration categories, controlling for age and parents’ educational level. This study found that 6.1% of the children who participated in our study slept 0.05). In this study, a considerable proportion of the schoolchildren sleep less than recommended and have sleep problems. Sleep intervention may be important to prevent sleep problems and insufficient sleep in schoolchildren. Further research is needed to clarify the association of sleep insufficiency and problems with academic performance in schoolchildren.

中文翻译：

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西班牙学童样本的睡眠模式和睡眠问题

儿童的睡眠对成长、情绪健康和认知功能至关重要。尽管有人描述睡眠不足会严重影响学习能力，但这种关系仍不清楚。目的是：（1）描述学童的睡眠模式和睡眠问题；(2)分析睡眠质量与数量与学业成绩的关系。这项研究包括 330 名 8-11 岁的儿童，他们拥有来自西班牙昆卡省 20 个城镇的 20 所小学的完整睡眠数据。使用西班牙语版本的儿童睡眠习惯问卷，测量父母的教育水平和学业成绩（期末成绩）。协方差模型分析用于评估睡眠问题和睡眠持续时间类别的学业成绩差异，控制年龄和父母的教育水平。该研究发现，参与我们研究的儿童中有 6.1% 的睡眠时间为 0.05)。在这项研究中，相当一部分学童的睡眠时间少于建议的睡眠时间，并且存在睡眠问题。睡眠干预对于预防学童的睡眠问题和睡眠不足可能很重要。需要进一步的研究来阐明睡眠不足和学龄儿童学业成绩问题之间的关联。