Several studies have proposed that coping strategies are a key predictor of sleep problems. Furthermore, some authors have suggested that depressive symptoms, a factor that is related to both coping strategies and sleep, may play a critical role in this relationship. However, this preliminary research has shown mixed results.

中文翻译：

---

应对策略与睡眠问题的关系：抑郁症状的作用

几项研究表明，应对策略是睡眠问题的关键预测因素。此外，一些作者提出抑郁症状，一个与应对策略和睡眠相关的因素，可能在这种关系中发挥关键作用。然而，这项初步研究显示出不同的结果。