Good 4wd camping matt, I've been waiting for this to go on sale. Normal price at Anaconda is $279.99, so good sale at $167.99 in store or $177.98 online (don't forget the 6% Shopback cashback for Anaconda)
I already own a Zempire Monstamat King Single, and now bought this one for my wife. I inflated both at home side by side and they feel very similar.
Fabric Top: 30D stretch fabric with TPU coated Fabric
Bottom: 75D polyester with TPU coated Material
Storage Sack Yes
Dimensions: 198 x 76 x 10 cm
Packed Dimensions: 82 x 22 x 20 cm
Product Weight: 3.6 kg
R value: not advertised unfortunately, however given the 10cm thickness and the materials are the same as the Zempire Monstamat and Megamat 10, which have an R value of 9.5 it will be very similar.
It doesn't look like you need to be a member for this sale. Nevertheless, Anaconda membership is free.
Single Zempire is same price in Wild Earth online and generally around that price in other shops. But double size for Anaconda one is really good price when compared to Zempire double prices.