I'm already at the end of my rope. Some nights I don't sleep a wink. John manages to sleep like a log even when the babies are screaming at the top of their lungs.

我受的苦已经够多了。有时候我整夜都没法合眼。约翰睡得很死，即使孩子们大喊大叫也不会把他吵醒。

youdao

I was dead tired, as you may fancy; and when I got to sleep which was not till after a great deal of tossing, I slept like log of wood.

我死累死累的，你可以想像得到，在经历了这样一番折腾后，我一倒下便睡得像根木头了。

youdao