You can consider the first month or so as a conditioning period during which time the sensitive skin may develop minor irritations and/or redness. When you notice this occurring take a few hours or overnight to rest and recover before resuming to wear again.
The idea here is that the sooner you rest the sooner you can resume wearing. You can also experiment wearing the Innerwear to sleep and see how it goes.
Some guys move thru the conditioning period with ease while others may need to take more time and care.
After you pass thru this you can pretty much wear it 24/7.