YOU SAID:

i have slept 5 hours in the past 36

INTO JAPANESE

私は過去36年間に5時間寝ました

BACK INTO ENGLISH

I slept for 5 hours in the last 36 years

INTO JAPANESE

私は過去36年間で5時間眠りました

BACK INTO ENGLISH

I slept for 5 hours in the last 36 years