We purchased a pair of Cello Mattresses and a pair of Kurl-on Mattresses two years back and both the pairs are being used intensively since then. It was my idea to buy 2 different brands for the sake of comparison. And after using and observing for almost 26 months I have found that both brands are equally capable.
But I would give extra points to Cello mattresses because their price were comparatively lesser than the Kurl-on ones.
These ones are very comfortable and cushioning is comfortable enough but one thing I didn't like that the color of the covers faded a little bit. We have been using alot of furniture by cello for long but it was first time when we used Cello Mattresses.Thank God, it didn't disappoint us. Otherwise my parents would always taunt me for the rest of my life. : -P
I would totally recommend because these are very affordable and equally comfortable to other famous brands.