In fact, the H4 the Lotus Irisette is very hard if you are not heavy enough. Even if you sit down, it drops about 95 kg One hardly.
As with the physiotherapy on the gymnastics mat then the back is on the hard / firm mattress ;-)
That feels good on the one hand, but the hardness is 4 but simply too hard if you weigh less than 100 Kg - unless you really like it very tight / solid.
So exchanged in a perfectly suitable H3 - and we would subjectively hardness 4 only recommended for a body weight of 105 kg upwards.
Even the impression of the Lotus:
The mattress is high quality and very comfortable, with also pleasantly thick. The cold foam is cut into "3D Cube", so that you will be less supported area (such as in the Badenia BT310), but rises against the foam even closer to the body contour.
This is very convenient - you have the feeling to sink into a cloud (which collects and relies of course).
In Ledenwirbelsäulen problems but it could be that the Lotus is not suitable for everyone the same - possibly a flächigeres props then better than the supporting cube of Lotus. For example, from my experience, Badenia BT310, which was also a St. Warentest winner or - still high - Badenia Irisette Klimaflex Visco / cold foam mattress, which is indeed "perforated", but still supports 1A).
Came the Lotus at this size and hardness in the box, quasi folded (not rolled, not a vacuum), so that they had the right shape equal, without first 24 hours to swell.. There was also no unpleasant chemical smell which should have evaporate. The return pickup by Amazon worked 1A.