Thanks for your reply! I wasn’t even sure if it was a matter of more open cells or channels engineered into the shape of the layer. Sounds like it’s the former.
I actually just found this post from last September, in which someone received a PDF from Brooklyn Bedding describing the PureCool material, as described by the manufacturer of the material. At least, I think I’m interpreting that correctly. They said they had received a “powerpoint”, and when ended up posted was a PDF. Anyway, the material looks fairly legit.
I’ll ask a similar question through BB’s online sales chat, although I have a fundamental distrust of salespeople.
I think I saw another post (can’t find it now) where you said you thought PureCool was likely to be cooler than the Cool line, based on what you knew, and that alone may be enough to convince me… if I think there’s a 50% chance that I’ll get 5 minutes more sleep per night for the next several years, that’s probably worth $700 to me.
My previous thought was that there was a good chance I’d be too warm, whether I got a Cool Luxe or a PureCool Luxe, but that I would try to control it by adding a more breathable layer on top (wool or something). And therefore I would just get the Cool and save money. Leaning the other way now. Though it’s totally possible that the Cool would be cool enough by itself.
I’ve found a few user reviews of both models on the forums here, and they sound pretty good. I wish there were more reviews. I’ll add one for whatever I get.