Sleeping on a cloud - unfortunately only for Nearly five weeks

I weigh just 83 kilos and H3 have ordered. I feel as not too soft nor too hard.
Yesterday the mattress no backache in the morning was delivered after the first night, I can only say that I am impressed, no back pain at night. The mattress has ballooned to a thickness of almost 19 cm within 3 hours after unpacking, chemical smell I could not tell. Since it seems well to give people who have a very fine nose;) As I've read in some reviews that after 6 months the mattress worn, I will review these in due course update.

1. Update: After now almost 2 weeks I can only say that I do not regret the purchase, my back pain are as good as gone, added getting up now falls a little harder when you lie so easily :)
Wear I can not find, but as I said, more in due course

2. Update: Well shortly after the end of the return period of Amazon has in the pelvic area a hollow formed in the mattress (Despite contact in 14 days cycle). Abernds at bedtime is the back pressure in the pelvic area still exists and the spine is straight, the mattress are unfortunately after a few hours the extent to which I constantly turn my back pain due to back and forth and very restless sleep. I find it very unfortunate because I slept at the beginning really great on the mattress, but 217 euros for 5 weeks is a wasted money. As it is a hygiene article is the exchange probably not work, I'll still call the manufacturer and try my money again to get. Report on the return attempt I will add here again.

Anyway, I advise all customers away from this mattress from, under any circumstances buy, the money

3. Update: After the 30 day return period had expired I should contact the manufacturer. A Message from Badenia contained just short and rude the statement: Since contact times to their trading partners.
Then I wrote Amazon, just came the answer, pick agreed, money will be refunded.
Super Amazon, thumbs up for the service!