I was up till about 2:30 last night listening to music with my headphone like you do. I was had it on about 10:00-11:00 o'clock as you have to have my HD495's on loud to just to get anything out of it, 11:00 o'clock on most headphone would damage your ears but not these. Anyway I just dancing about as I wasn't tired and then the cable came out of my amp. I had music blasting out of my HIFI and full volume. It woke everybody up in the house.... woops. My PM4000 was better in respect as it has buttons to swtich the speakers off, but on the PM6010 its done by a switch in the headphone jack itself. All this after I had an argument with a mate telling me to buy cordless ones, he dosn't seem to understand they sound crap.