Hellow guys, Welcome to my website, and you are watching #shorts #교대근무 (수면전문의 신원철). and this vIdeo is uploaded by SLEEP Dr. 신원철 꿀잠튜브 at 2023-09-12T03:00:48-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.