Rab - Ultrasphere 1.5 Sleep Pad

I used to sleep on [this](https://www.decathlon.co.uk/p/inflatable-trekking-mattress-size-l-mt500-180-x-52-cm/189392/c344c344m8799965) mattress from decathlon. Used it for an one year journey from Europe to Kyrgyzstan. I loved the mattress, slept well, no punctures and you could fold it very small. The thing is, when the temperatures dropped, the mattress is not so suitable anymore. I learned to look at the R-value of the mattresses. If you go to sleep below 5 decrees celsius, I would at least look for an R-value above 3.0. I recently bought the [Rab ultrasphere 1.5](https://rab.equipment/eu/ultrasphere-1-5-sleep-mat?queryID=7c0e8b4d59e9a38c4bfad331f687a7b4&objectID=63330&indexName=rab_live_eu_products&_gl=1*1hjlxj8*_up*MQ) . I am still using the mattress from the decathlon in summer, but I will this mattress in the wintertime. The [decathlon version with higher R-value](https://www.decathlon.co.uk/p/lightweight-inflatable-trekking-mattress-size-l-mt500-l-180-x-52-cm/311475/c242m8853280) was not an option, because it was packed way to big. So, check the R-value if you go in warmer conditions, and also check the size of mattress unpacked. Good luck!

Rab Ultrasphere is like half the packed volume of a Nemo Tensor

The Rab Ultrasphere is a great UL all-arounder pad. First batch has had some durability issues (pinholes) but the problem might have been fixed since

Not sure what you mean. 20D is OK, Uberlite and Tensor Elite are 15D and 10D respectively. I don't see why the Ultrasphere would be "next in line" either

I feel like this is the case, there are like two people here with significant amount of experience on a Ultrasphere (which is way sturdier than the Uberlite or Nemo Elite) and everyone keeps repeating those anecdotes. FWIW I have 15 nights on my Ultrasphere without problems, but always slept in a tent