you don't want cork to be exposed to excessive sunlight. it will dry it out, warp it and crack it. I've seen it work, but I've also seen it fail so I personally wouldn't take the chance.
Cork in a bathroom is fine, it does pretty well with moisture. Usually in a bathroom, that's the main concern.

I wouldn't recommend using cork in either the kitchen or the bathroom. We have had a cork floor for 5 years, and had a leak under the sink, and it ruined the floor. I called the cork company, which advertises cork in the kitchen, and they basically said they don't recommend using cork in the kitchen.

This is a repeat of my response to patma in the previous thread that they commented on.

I don't think your problem was with the cork. It was with the floating floor which is a thin layer of cork over a cardboard type substrate. Wood-look or Tile-look laminate flooring also has that same problem. Our glue down tiles are fine with water. I have boys who constantly leave ice cubes on the floor(from the through-the-door frig dispenser) and I had a dishwasher leak that flooded the floor overnight once. The floor is fine because it was glue-down cork which is cork the whole way through. Think about it - cork sits in wine bottles for years and is fine.

Thank you laxsupermom for following up on patma's comments here and elsewhere.

I'm certain this has been mentioned for years but it would be most useful for those searching the threads if people raving or complaining about their flooring would include the brand, name and model of the flooring they are talking about. There are SOOO MANY brands around and even those can have manufacturing changes over the years.

Not all cork will fail with UV exposure just like not all cork will fail when exposed to water. There are many companies which promote their protective coatings with UV inhibitors. Unless someone spells it out here, one needs to do their homework to figure out which brand will work best in their particular setting.

Most major manufacturer's put out good / better / best product offerings to meet market price points and distribution goals. Just saying cork or 'product X' is good/bad really doesn't help anyone. There is a reason cork has been used as flooring for centuries. The point of these forums seems to be figuring out which ones work best in different situations. laxsupermom is the only person responding to this thread (including me) who comes close to giving a useful answer.

Basically, glue downs for wet areas - no floating floors. UV protective coating will help but not eliminate the sun damage problem. If it was me, I'd look into getting the floor you want but also investigate UV window films to protect the interior. There have been amazing advances in recent years - the weird tints are gone and you can get very good protection from light colored ceramic films that don't even look like they are on the window.