高枕无忧的英文：
[Literal Meaning]
pile up/pillow/without/worry
to shake up the pillow and have a good sleep

[解释]
垫高枕头睡觉，无忧无虑，比喻思想麻痹，丧失警惕。

[Explanation]
to be carefree without anxiety

[例子]
不要以为评上了教授就可以高枕无忧了，你每年也要发表三篇论文的。

[Example]
Don't think that you can be carefree without anxiety after you got the title of professor. You have to publish three papers every year.

A clear conscience is a soft pillow
问心无愧,高枕无忧

Does he think he can sit back quietly now that the inquiry is over?
难道他以为审讯收场，就可以高枕无忧了？

This push/ Will cheer me ever or disseat me now
这一次的战争或者可以使我从此高枕无忧，也许立刻把我倾覆。