Does anyone have any idea how long handcuffs can safely be left on? Obviously, it depends on the subject and the circumstances but there must be guideline. They're called "temporary restraints" but I've not seen anything saying just how temporary. I regularly spend 3 hours plus with hand behind my back, palms out. And have gone 8-10 hours (right through the night) hands cuffed in front. I've read of handcuff neuropathy. I've experienced numbness. Usually, it's the axillary nerve getting pinched slightly. Changing position fixes this. Two or three times, I felt numbness along the back of my hand and down the little finger. Again, easily fixed. Never the radial nerve numbness you're supposed to watch for. I've been cuffed a thousand times I bet. There was a video on youtube of a teen aged girl who was left laying on a cell floor for 6 hours, hands cuffed behind her back and a strap around her ankles. I think of that poor kid when my shoulders get tight or my wrists get uncomfortable. I have yet to reach my limit, however. When you think about it, handcuffs are used to restrain piss drunk or crack/cranked up nuts hundreds of times a day. I've never known or heard of anyone who has gotten hurt by handcuffs. Even if they're put on tight and left on for hours, any nerve damage is temporary. Anyone care to compare/chime in/debate? I'd be interested in hearing how long you who use handcuffs, are comfortable leaving them on.