Skiing and sleeping

I'm in the process of arranging a ski trip with a few good friends who are all Americans and live in the US - two in New York and two in Denver. We're planning to go to Steamboat and rent a house for a few days and have found one that looks pretty good and seems to fit the bill. However there is one slight problem. The house has 3 bedrooms each with a queen sized bed. There are, currently, six of us, two married couples and two male friends, and the problem is that the two guys predictably don't want to sleep in the same bed. They are both married (their wives are staying at home) and have known each other for many years, but even despite their long standing friendship they can't bring themselves to do what actually makes perfect sense.

I'm sure this is a pretty normal reaction but the thing about this that seems a bit odd when I think about it is that as kids we all love sleeping with our friends when it all seems like really good fun. Even as teenagers it's not really too much of an issue, even with the same sex. But then at some point, and this seems to be mostly in the case of men, it becomes a big problem. Sleeping in the same room doesn't seem to be an issue, it just seems to be the idea of being in the same bed. It's crazy really, but maybe it's just that as adults we worry to much about what other people think we might be doing, even though it's the last thing on our minds.