You know it's interesting - I have a VacExtender (latest version)...
That overall the concept and design (other than the "imbedded" pump on the PF) is highly similar.
But wearing it overnight - no way.
Some times I can get it on just right where I could wear it - straight - for 5-6 hours (until I need to urinate). But a good portion of the time I could only wear it for 2-3 hours before I start feeling pain somewhere that concerns me enough to take it off.
Right now I'm wearing it for 2.25 hours and it's all good, it's one of the 25% of the time where I could probably go safely for hours and hours.
It's just interesting that the PF somehow has a subtle design benefit that allows people - not just "crazy" people - but really everyone... To wear it overnight.