My girl friend and pretty much everyone else I think thinks I'm nuts lol cause I probably wear these 7-10 hours at least a day..every day.lol just can't get enough ..I'm always hear different things in the music I listen to and always trying to listen for different things..
I spend about the same amount of time with these in my ears... during the day! While I sleep, they're often still in my ears. That's another 7-10 hours. ;) No ear discomfort, ever. Perfect fit and seal. I run 28-32 miles a week with these in my ears. I'm still not using any filters. Still working great.