The 90 minutes is probably with the instructor, who will also prevent you from damaging things. Most of the things in hotel rooms are replaceable. This is argu

The 90 minutes is probably with the instructor, who will also prevent you from damaging things. Most of the things in hotel rooms are replaceable. This is arguably not as replaceable as towels or a mattress. Probably helps electricity usage too, even though that's probably small to a hotel for even 24 hours usage.