I wear my
cock ring for hours, especially after pumping sessions. The ring is not very tight but it will stay attached even during workouts (cardio). When I go cycling it will loosen because the penis always shrinks to minimal size. In the gym this doesn't happen.
I used it overnight but I stopped because it wakes me up when I get an erection in the morning and because of itching at times. Nowadays I don't use anything during the night because my day is full of routines and there are speculations that resting time is good for good progress. If I wouldn't wear the [words=http://www.
phallosan.com/shop/catalog/default.php?z=eNortjIxtVKyL0pNszWxMFcrSSxKTy2JL0hMT7U1UisoykyxtbBQSy4tLsnPjS8uKcrMS7dVsgZcMMpbEbo%2C]
Phallosan[/words] 10 hours a day, I would wear the
cock ring instead. Sometimes I do both.
When I pump in the morning the penis will have increased size at all times during the day even if I don't wear a
cockring. This became clear because my [words=http://www.
phallosan.com/shop/catalog/default.php?z=eNortjIxtVKyL0pNszWxMFcrSSxKTy2JL0hMT7U1UisoykyxtbBQSy4tLsnPjS8uKcrMS7dVsgZcMMpbEbo%2C]
Phallosan[/words] XL fits best when I have pumped at one point during the day.
Considering blood circulation I believe that the pressure with my setup is always high enough to force new blood in. At the same time the old blood gets displaced. The only thing that doesn't happen that easily is that blood leaves the penis without new blood being pushed in.
My cock never had bright skin or a bright glans which shows that there is not enough circulation. With the
cock ring it is always deep red. Therefore I think it is okay.
The
cock rings I are from a brand call Lumunu. It comes in a pair of blue and black. I have to add that when I wear a ring, I wear one ring which entangles cock and scrotum at the same time.
Bonus: There is an interesting read on the German Wikipedia page about loss of circulation. What they call "autoerotic accident". If you look at the pictures you will see a destroyed cock which fell victim to a little game where a guy put his wedding ring around his cock. Google "Wikipedia Autoerotischer Unfall"