【各种睡姿】侧着睡sleep on your side；仰着睡sleep on your back；趴着睡sleep on your front/stomach；昏昏欲睡sleepy/drowsy/dozy；毫无睡意be fully awake； 睡了一整天sleep around the clock；眯一会catch a wink；睡懒觉sleep in；熬夜stay up ；深度睡眠者heavy sleeper 浅睡者light sleeper ​