SIM deflating overnight ☹️

[LesserKnownKardashian]

I have a Vango comfort SIM which I'm fully inflating in the evening, but it has lost pressure by 2 in the morning. The valve is definitely set to the 'inflate' side. What am I doing wrong?

I have the same issue with my vango Comfort 7.5. Had been planning to put it in a paddling pool to check for leaks but good weather only arrived last week where I live, when I had gone abroad for some sun!

We have also had the same issue with our Vango Comfort SIMs. We put some PTFE tape around the valves hoping that would help to seal them, it didn't. We also found that the material had come away from the valve on one and tried to repair that too without success and they are only 2 years old. Absolutely given up with SIMs now as we have had other brands which have done the same over time and we do look after our equipment. Eventually we have gone for these Oxford camping mattress Not cheap and a little bulky, but comfortable, waterproof, no chance of them deflating and I think that they would be warmer in the cooler months.

Also have this problem with Vango Comfort 10cm sims.

Seem like they are ok and no tangible leaks but then they deflate.

Shame for the price. We have two.

Ive borrowed this SIM and I think the valve is faulty. There's no orange liner so it makes no difference whether it's on deflate or inflate. Hence I'm stuck with a fully inflated double SIM in my lounge! Can anyone confirm it's faulty? It's the 2020 model.