Originally Posted by Osseous
Because no other sleeping bag performs. Wiggy makes the only one out there that will keep you warm. Right. He does it with magical snake oil~
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I am not a fan of Wiggy bags. We used them in wilderness therapy and I think I have spent about 100 days in one of their sleeping bags or over sacks. His claims appear exaggerated to me compared to my field experience and basic concept of warmth. I am skeptical of any company that makes claims to the scale like Wiggy does.
The most reliable rating system right now is the "EN (13537)"; as I understand, it is the only one with set standards that can be duplicated industry wide. Its easy to use by consumers (men, women, and survival ratings) and is consistently testable. Wiggy does not use it but instead lists an FTRSS to be used in combination of multiple bags.
Also look at overall materials transparency when dealing with manufacturers. The companies I trust the most have started listing fill weight of insulating materials, for both synthetics and down. This allows you to better understand not only what is in the bag but also how much of the weight is insulation versus shell weight.
I will say Wiggy bags perform in the category of warmth. I spent 2 winters in them with temperatures that often dipped below -20F before windchill. I stayed warm. But here is the twist, Wiggy's are the equivalent of "overfilled" compared to other companies hence why they are so warm, heavy and bulky. I would wager they would rate at a much lower EN rating than the company conservatively estimates. Part of this plays into the hype, like the video linked earlier. Who wouldn't eventually be relatively warm in a bag rated to -20F when its only 32F outside (there was no way all of that insulation was soaked)? It would be like me comparing an arctic puffy from Marmot to a ultralight down vest from Rab.
Once again I would encourage people to understand the basics of staying warm before succumbing to the marketing hype of any company.