Well made product and is effective,
I am glad to have purchased this product. I think if I had gone with the recommendations I read online, then the blanket would have been too heavy. The 3.5kg is fine for me, and Im 6'3" and weigh around 98Kg. But I appreciate people may generally need the recommended heaviness, which I think was around 7kg.
I am still experimenting how best to use the blanket. The 2-sided cover whilst helpful, still makes the product too warm when laid over my Tog 6 duvet. So, I am going to try it without my duvet, although with it being single its not sufficient to cover all of me. Personally I really struggle with finding bedding that is cool enough, as many items advertising this benefit, but very few live up to it.
In summary, I'm still exploring how to use it, but it certainly provides comfort, and support.