natural short sleeper
natural short sleeper
Sleep disorders A person who functionsnormally with less than what is considered to be a normal-length sleep or rest for his/her age group, without known adverse effects. Cf Insominia, Sleep disorder.
英语词典包含2567994条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。