下面是有关中学生睡眠情况的调查表，请据表格中的提示写一篇100词左右的英语短文。

　　原因 1.作业过多;2. 家庭、学校一味强调学生成绩，而忽视学生的身心健康;3.多数学生睡觉前喜欢玩手机和iPad，导致休息很晚。4.各种压力和不好的心情。

　　对策 1.减少作业量;2.睡前远离数码产品;3.学生的身心健康需要关心。

　　注意： 1. 可以适当增加细节，使短文连贯、完整;

　　2. 参考词汇：调查survey;有负担be burdened with;数码产品digital devices。

　　>参考范文：

　　According to a survey, we know most middle school students sleep less than 7 hours' each night, much less than required.

　　First of all, the students have too much homework. Second, schools and parents pay less attention to their sleep. Another important reason is that many students play with their cell phones or iPads before sleeping. This is one of the main reasons for bad sleep. Other reasons include stress and bad moods.

　　So we must take some ways to stop this. First, less homework should be given to the students by teachers and parents. Second, students need to keep away from digital devices for at least an hour before sleep .Last, more attention should be paid to their health.

　　>【参考译文】

　　根据一项调查，我们知道大多数中学生每晚睡不到7个小时，远远少于所需。

　　首先，学生作业太多了。其次，学校和家长对睡眠的关注较少。另一个重要原因是许多学生在睡觉前用手机或iPad玩。这是睡眠不良的主要原因之一。其他原因包括压力和坏心情。

　　所以我们必须采取一些方法来阻止这。首先，老师和家长应该给学生更少的作业。其次，学生在睡觉前至少需要一个小时的时间来远离数字设备。