把一句中文句子翻譯成英文

Lack of sleeping time causes student to yawn/nap/sleep in class

or\

Lack of sleep affects student's concentration in class severely, worst cases of all, some students fall asleep in class or yawns repeatedly, disturbing others studying

學生的睡眠時間(不足)會影響(導致)他們在上課時打盹/打瞌睡/睡覺
Insufficient sleep will cause students get sleepy while attending lessons.

Student's sleep time will affect them when attending class will nap/dozes off/sleeps

將這句句子譯成中文??:
學生的睡眠時間會影響他們在上課時打盹/打瞌睡/睡覺
你想我這樣嗎??
還是譯成英文:
Student's sleeping time will effect their time to attend their class.