Here are a few description options for the WordPress post tag “深層睡眠” (Deep Sleep) in Traditional Chinese, ranging in length and style:

**Option 1: Concise & Direct:**

> **描述:** 提升深層睡眠品質，享受一夜好眠。
>
> **Translation:** Improve deep sleep quality and enjoy a good night’s rest.

**Option 2: Slightly More Descriptive:**

> **描述:** 探討深層睡眠的重要性、好處，以及如何促進更深沉、更有效的睡眠狀態。 了解改善睡眠質量的秘訣，獲得更健康的身體與心靈。
>
> **Translation:** Exploring the importance and benefits of deep sleep, and how to promote a deeper, more effective state of sleep. Learn the secrets to improving sleep quality for a healthier body and mind.

**Option 3: Focusing on Benefits:**

> **描述:** 關於深層睡眠的相關文章，幫助您獲得更充沛的精力、增強免疫力、改善情緒，並體驗更全面的健康。
>
> **Translation:** Articles related to deep sleep, helping you gain more energy, boost immunity, improve mood, and experience more holistic health.

**Option 4: SEO-Friendly Emphasis (If you are using tag descriptions for SEO):**

> **描述:** 尋找改善睡眠品質的方法？ 在這裡找到關於深層睡眠、睡眠週期、睡眠障礙、如何入睡等方面的資訊與建議。 獲得一夜酣眠，擺脫疲憊！
>
> **Translation:** Looking for ways to improve sleep quality? Find information and advice on deep sleep, sleep cycles, sleep disorders, and how to fall asleep here. Get a good night’s sleep and get rid of fatigue!
* **Note:** This one includes keywords like “睡眠周期” (sleep cycles), “睡眠障礙” (sleep disorders) and “如何入睡” (how to fall asleep) which can potentially improve SEO.

**Which option you choose depends on your website’s overall style and how you want to present the tag.** Choose the one that best reflects the tone and purpose of your content. Remember to write using Traditional Chinese characters as specified.