可逆转性是正确行为(甚至睡眠)的一个特点。

Reversibility is a feature of all correct action, even sleep.

youdao

保持心态健康和身体强壮是生活中重要的方面，因为它会影响人的工作，思想甚至睡眠。

Keeping the mind and body strong and healthy is an important aspect of life, as it affects the way one works, thinks, and even sleeping.

youdao

既然锻炼可以降低患这种疾病的风险，促进平衡，有助于减重，形成更好的睡眠习惯，甚至令你更自信，那你下一步就可以开始锻炼。

Since exercise can reduce the risk of diseases, improve balance,help lose weight, better sleep habits and even make you confident, you can start a fitness program in the following steps.

youdao

After all, not only is it true that you can't picture from the inside what it's like to be dead, you can't picture from the inside what it's like to be in dreamless sleep.

说到底，不仅人无法想象,死亡的感受，人甚至连无梦的睡眠,当下的感受都无法想象。

耶鲁公开课 - 死亡课程节选