The ceiling keeps its promises. Despite the super lightweight 840gramm the ceiling 16-17 ° C room temperature is wonderfully warm in winter approx. The assessments of Testfirma match my perception during sleep at least for the winter. Whether the ceiling is so wonderfully airy in summer, to be as it purports to be seen. The 6 x 4 stitching ensures a uniform and lasting heat, which is also available, if you get out of bed for 5-10 minutes. I'm looking forward to it can use the new ceiling ausgibig weekend. Four stars (five would have given it if I already knew that the ceiling also holds in the summer what it promises ...)