I've done it twice with 5 BBCs. It was in a hotel and lasted until 4am. I'd driven about 1.5 hours to get there. The first time was mind and body blowing. The next time I knew what to expect but was still blown away by it all. I could barely walk the next morning and my ass was sore, but it was all good. They left me sleeping. I woke at just before 11am each time.