You will find pages that tell you exactly what a sauna does to your calendar. We do not publish figures like that, because we have not seen a source we would stand behind, and a number we cannot support is worse than no number at all.
What we can talk about with confidence is the part we do: how the room holds up under guest use, how it operates when you are not there, what a cleaning team faces between stays, and who answers when something needs attention in a busy season. That is a practical conversation, and it is the one that decides whether this works for you.
Everything below is what we know from building and servicing these rooms. Nothing below is borrowed from a report we cannot show you.