And to prepare himself, he went without sleep for long periods of time.

VOA: special.2009.03.18

We banned that drug and I haven't heard anybody saying that that was a wrong decision, that we should allow pregnant women who want to sleep better to take a drug that will mean their children are born without limbs.

我们禁止了这种药物的使用，但我们从未听说,有人认为这是个错误的决定，也从未有人说，我们应该允许,失眠的孕妇使用这种药品,即使她们的孩子可能从出生就没有四肢。

普林斯顿公开课 - 人性课程节选

It says they should be placed on a separate sleep surface from their parents,without blankets, pillows or other soft bedding.

VOA: special.2009.08.26

He allowed us to stay here and provided security for us so that we can sleep in peace without worry."

VOA: standard.2010.06.01

But even when parents follow all the guidelines, putting their babies to sleep on their backs, removing blankets and stuffed animals from their cribs, infants still die without warning.

VOA: standard.2010.02.08