Wearing an
extender while asleep seems like a bad idea to me. I was able to get results with my FastSize (SizeGenetics would be the equivalent now) with 4 hours a day for 3 months.
IMO, sleep should be a time for the dick to recover and get hard as it pleases. But either way, great effort and good luck! Whatever works for you man. Just wanted to share my $0.02 about safety.