Another how would you split accomodation costs?

[Dryplate]

I don't really expect int to be an issue, the people I'm going with are all very easy going and more likely to object if they feel they haven't paid their share than because they think they've paid too much, but on this occasion I'm the organiser and also (possibly) might end up with the best deal, so want to make sure it's reasonable.

It's a short trip to do an event. 5 of us, one married couple, 2 men and me. I've booked an apartment with 3 bedrooms, a double, and two twin rooms.

So married couple have the double, two men one of the twins (they're happy to share) and I'll end up with a twin to myself. Not intentional, just how the most suitable accomodation worked out.

So, do we divide the cost by 5 people, or 3 rooms?

I'd go five ways it's unlikely it would have been much cheaper with a single room

Split between five, unless there was somewhere else to stay that had a much smaller third bedroom that may it cheaper. In all fairness, you've researched and booked the accommodation though, so most people would let it go, you had a larger room. I assume they're close friends who you trust, if so and anyone suggests otherwise, tell them their welcome to take the other bed in your room.