Is it dangerous to let your arm fall asleep?

I sometimes sit on my hand until it falls asleep, I call it (her) the stranger.

i wake up some nights with my arm completely numb, sometimes it’s worse than others. i don’t think there any danger involved unless maybe it happens every single day unconnected with a weird sleeping position. just be conscious of your sleeping position and you should be fine.

lol the stranger, ah I havent heard that in forever. I lurve the stranger.

I think it’s the nerve that’s affected, not the blood flow. An extremity without bloodflow gets your attention through severe pain, believe me.
I have the same thing happen tony arm, too, sometimes, with no ill effects at all.

Only when it’s driving.

When you sleep, your body pretty much does what it wants to, this includes tossing and turning. It’s natural to wake up with your arm asleep sometimes. Someone already said this, but pain is the actual only real sign that you did any damage to your arm while sleep. When I was diagnosed as diabetic, but they didn’t know if I was type 1 or 2, they kept me in the hospital. They asked if I wanted them to poke me with a needle every 4 hours for my blood test, or leave in a artery line. I choose the line, and by GOD, every time they drew blood, my whole hand felt incredibly hot, then unbearably cold, I almost cried the first time they did it. If your arm stays numb for longer then 10 minutes, sometimes 15, you might want to get a check out, because diabetics heal much slowly than everyone else, not that your arm being asleep is a major problem, but it could be masking something else with your body.

This happened to me for the first time this morning. It didn’t even feel like it was my arm! Don’t worry though, cdwccern is right on the money.

Nothing bad should come of it; the sensation is caused (AFAIK) by compressing the nerves in the arm, nothing more.