My Cumulus (Poland) sleeping quilt seems to hold the heat less than it used to so I emailed Cumulus Pl. for advice. My quilt is now oiver three years old, possibly four and the Cumulus member of staff wrote back within 24 hours suggesting this and that, wash it, wash it properly with the proper cleaning liquid and If I want to I can send it back to them to look at, evaluate the problem and if possible they will rectify the matter for me at no charge. All I have to do is provide the postage there and back.
Earlier in the year, I sent back a pair of leaking Salomon Ultra X's to SportsShoes.com and the firm replaced them for me without a quibble at no cost other than my postage.
This sort of customer care I have to admit does influence me, I would have no hesitation in buying a product that I needed or wanted off of them again. A pity that so many other firms are less than helpful to their customers, Marmot, take note!