YOU SAID:

I feel so tired I could sleep for a year

INTO JAPANESE

私はとても疲れて、1年間寝ることができました

BACK INTO ENGLISH

I am so tired and went to sleep for a year

INTO JAPANESE

私はとても疲れているし、年の眠りについた

BACK INTO ENGLISH

I'm very tired and went to sleep,

INTO JAPANESE

私は非常に疲れていると、眠りについた

BACK INTO ENGLISH

I have been very tired and went to sleep

INTO JAPANESE

私は非常に疲れているし、眠りについた

BACK INTO ENGLISH

I have been very tired and went to sleep