Test run immediately after purchase a few months ago: Over three days only a short time for testing purposes by a person with max. Used 70 kg, after 3 days of low air loss, wrapped neatly. Last night inflated for use starting today. This morning already very strong deflation. Obviously, the valve no longer closes properly after it has been opened. We had dealt with the mattress like a raw egg. A hole is excluded. Conclusion: Then you can not sleep! Unfortunately - and even more frustrated - there is the possibility to make a warranty claim on any products at Amazon. Although bought at Amazon, not with Market-Place - - This product does not. The mattress is not yet 3 months old !!! The talks mainly to Amazon! Therefore, exceptionally, says this forced Stern also Amazon.
