Hi levander,
The one I have does have the membrane (which can increase the heat) but it’s also washable. You can see my comments about it here.
I’m not sure what you are asking or suggesting here but I had a business plan put together that I hoped would eventually support my family before I even started the site. As much as I love what I do … I don’t think anyone could spend the hours I do at anything for free and still be able to support their family (unless they had another source of income which I don’t). It took a couple of years to get there and I realized from the beginning that it would take time but thankfully it has reached that point.
I have no experience with this mattress pad so I can’t make any comments based on my own personal or “subjective” experience but it’s designed as more of a mattress pad and will add a little more “cush” than a mattress protector which is generally made as thin as possible so it has the least possible effect on the mattress while still protecting the mattress. If I was looking for a wool/cotton mattress protector that had the least possible effect on the “feel” of the mattress I would probably lean towards the St Dormeir but If I was looking for a thicker mattress pad or even a topper that would change the “feel” of the mattress more then based on what I can see I certainly wouldn’t have any concerns with including this one as a possibility although my own “process” for deciding which one I would buy would be based on conversations with knowledgeable retailers or manufacturers who know more than I do about their products and then I would make a choice between them based on my own “best judgement”. You can see some of my general comments about Sleep & Beyond in post #3 here. The wool they use (which is described as Shropshire in the listing but their site says they use Merino) is a finer and softer wool than some others who use courser wool for their mattress pads or toppers so they will maintain their resiliency a little more and use finer wool for their comforters.
Phoenix