Comment on

• Sleep quality among relatively younger patients with initial diagnosis of hypertension: dippers versus non-dippers.

  Yilmaz MB, Yalta K, Turgut OO, Yilmaz A, Yucel O, Bektasoglu G, Tandogan I. Yilmaz MB, et al. Blood Press. 2007;16(2):101-5. doi: 10.1080/08037050701343225. Blood Press. 2007. PMID: 17612908
• Poor sleep quality, stress status, and sympathetic nervous system activation in nondipping hypertension.

  Huang Y, Mai W, Hu Y, Wu Y, Song Y, Qiu R, Dong Y, Kuang J. Huang Y, et al. Blood Press Monit. 2011 Jun;16(3):117-23. doi: 10.1097/MBP.0b013e328346a8b4. Blood Press Monit. 2011. PMID: 21562453