There is no such assertion in the article. It is only speculated (by the reporters) that sleep deprivation might be used. Nothing more.
What the article actually says - despite its mendacious and contrary spin - is that no torture is being employed by U.S. personnel, and that other countries might possibly use torture against these captives, but it is entirely unknown.
Only one of more than a dozen "official" sources even bothers to speculate that other countries might employ torture against these captives (and you can bet the reporters asked each and every source that specific question).
Yet in the story, there is not a single assertion of fact that such is the case. A great deal of spin and speculation, but not one iota of fact.
Paragraph #3 clearly states prisoners are forced to stand or sit for hours. Let me make it clear - I don't care. I wish they'd pull out their fingernails and move on from there.
That's paragraph 3 and the comments I was referring to. Doesn't sound like torture to me (darn it!). Most Americans reading this will either laugh at the Posts's feeble attempts to discredit our "inhumane" methods or, like me, feel disappointment we aren't being more aggressive.