Additional:
I further ordered the following two things, which I can only recommend. Both fit well to the bed and I can sleep better since then really. no numb shoulder more.
firstly a slatted frame:
Slatted 160x200 cm, bed frames - for all mattresses suitable
by i-flair (the assembly takes, however twice as long as the bed frame and is a bit more difficult - but the result is good and keeps / weigh slightly over 100 kg :-) ....)
secondly, a mattress:
Badenia Bettcomfort 03888360150 Irisette Lotus pocket sprung H3 160 x 200 cm white
of Badenia (the hardness H3 have chosen because of my weight - fits, pleasant, less back pain ever since)
Conclusion:
was skeptical at first a complete bed of three vendors to order from Amazon. but it is to my complete satisfaction expired. it was much cheaper than a comparable bed of the furniture store, it is stable / good-looking and not much more complicated - you had to be only 2 times more often at home to receive the delivery to take hold. the dates - it occurs to me just - I could even choose with and were well respected. I would do everything the same way again.
Best Regards to all who read this.