在英文中,“他按时睡觉”可以用以下几种方式表达:

He goes to bed on time.
He gets to bed on time.
He hits the hay on time.
He turns in on time.

这几种表达方式的来源均为日常生活用语,为了较为形象地表达“睡觉”的概念。

下面是一些例句,并附上中文翻译:

He goes to bed on time every night. (他每晚都按时上床睡觉。)
It's important to get to bed on time so you can wake up feepng rested. (按时上床睡觉很重要,这样你就能觉得精神饱满。)
I always hit the hay early because I need my beauty sleep. (我总是早早上床睡觉,因为我需要美容睡眠。)
My grandma turns in early every night. (我奶奶每晚都早早上床睡觉。)