Hi Ari,
If you read through my earlier reply, you’ll see that Sleep & Beyond was listed in post #3:
https://sleepandbeyond.com/ Manufacturer that makes a mattress pad/topper produced in the Kyrgyz republic in central Asia using locally raised Merino wool and quilted in an organic cotton jacquard. They sell their products direct but their retailers generally have a better price than is listed on their website (a fairly common practice for manufacturers who also sell through retail outlets). Good quality and value although they only make one model. They use 8 lbs of wool (queen size). NOTE: they have now added some new products that use Shropshire wool … see post #20 here .
I don’t have any personal experience with Sleep & Beyond, so you’d want to phone them to get complete information about this topper. They list that their products are third party certified, but they don’t list the actual certifications for this particular item. This is listed at $319 on their site for a full/queen at 15 oz./yd2. I’m unaware of any blend that may or may not be in their product.
While there are suppliers of GOTS certified wool in the USA, I would also keep in mind that some of the non organic wool that you will find (such as Eco-Wool) is also a very high quality material so you may not wish to exclude it.
Phoenix