1. To know any disease well is to have knowledge and awareness of the possibility of overlapping sleep disorders

   • Kazuo Chin

   Editorial 04 October 2019 Pages: 365 - 365

2. Cosleeping and sleep problems in children: a systematic review and meta-analysis

   • Xiaojing Peng
   • Gangxuan Yuan
   • Ning Ma

   Original Article 14 June 2019 Pages: 367 - 378

   

3. Effect of ramelteon on insomnia severity: evaluation of patient characteristics affecting treatment response

   • Makoto Uchiyama
   • Shigeru Sakamoto
   • Kouji Miyata

   Original Article Open access 15 June 2019 Pages: 379 - 388

   

4. Prevalence and associations of insomnia in lung transplant recipients

   • Shaun W. Yo
   • Louise M. Fuller
   • Eli Dabscheck

   Original Article 10 June 2019 Pages: 389 - 395

   

5. Effect of ramelteon coadministered with antidepressant in patients with insomnia and major depressive disorder: an exploratory study

   • Naohisa Uchimura
   • Keisuke Nakatome
   • Makoto Uchiyama

   Original Article Open access 13 July 2019 Pages: 397 - 405

   

6. Sleep disturbance is associated with not only shorter sleep duration, but also longer time in bed: a Japanese general population survey

   • Masahiro Suzuki
   • Ryuji Furihata
   • Makoto Uchiyama

   Original Article Open access 21 June 2019 Pages: 407 - 415

7. A survey on social jetlag in Japan: a nationwide, cross-sectional internet survey

   • Yoko Komada
   • Isa Okajima
   • Yuichi Inoue

   Original Article Open access 25 June 2019 Pages: 417 - 422

   

8. Indication of dynamic neurovascular coupling from inconsistency between EEG and fMRI indices across sleep–wake states

   • Changwei W. Wu
   • Pei-Jung Tsai
   • Chia-Yuen Chen

   Original Article 02 August 2019 Pages: 423 - 431

   

9. The association of brain lesion locations and sleep parameters in patients with multiple sclerosis: a pilot study

   • Hikmet Saçmacı
   • Nermin Tanık
   • Levent Ertuğrul İnan

   Original Article 06 August 2019 Pages: 433 - 439

   

10. Blink test results in patients with central sleep apnea syndrome

    • Isil Cakmak Karaer
    • Nalan Günes
    • Muharrem Dagli

    Original Article 02 August 2019 Pages: 441 - 445

    

11. The influential factor of narcolepsy on quality of life: compared to obstructive sleep apnea with somnolence or insomnia

    • Mei Ling Song
    • Keun Tae Kim
    • Yong Won Cho

    Original Article 26 August 2019 Pages: 447 - 454

    

12. Cross-sectional examination of gender differences in depression and anxiety symptoms in patients with obstructive sleep apnea

    • Melinda L. Jackson
    • Sanjeevan Muruganandan
    • Christopher Worsnop

    Short Paper 18 June 2019 Pages: 455 - 458

13. Irregular sleep–wake cycle associated with malignant brain tumor in an adolescent

    • Suguru Nakajima
    • Masahiro Suzuki
    • Makoto Uchiyama

    Case Report 28 August 2019 Pages: 459 - 461

    

14. Internet addiction and sleep quality: a response to Jahan et al. (2019)

    • Mohammed A. Mamun
    • Mark D. Griffiths

    Letter to the Editor 24 July 2019 Pages: 463 - 464