"Suffering leakage" star star_border star_border star_border star_border I bought these four months ago along with the large size bags. Both of the jumbo bags are letting air back in. One has four pillows and the other has a king size 13.5 tog duvet. I thought I hadn't closed the bags or vents properly but after going over them very carefully, I am still finding that they slowly re-inflate. Disappointing after reading of others' positive experience of them. I am now scratching my head as to how I'm going to store my extra duvets and pillows in my small house. Bernadine - 24 September 2013 support_agent A note from the team Thanks for taking the time to write your review. I'm sorry to hear that the bags have become faulty. I'll be in touch shortly.