.....tired ,you should go to bed early.
A. So as not to feel
Dịch: Để mà không cảm thấy mệt, bạn nên ngủ sớm
B. In order for not feeling → In order to mới đúng
C. In order to feel → thiếu not
D. So as to not feel → not đứng trước to
CT: S + V +...+ so as (not) to+ V1
in order (not) to +V1