All domestic stuff and superb firm adjustable support with amazing smell (filled with film of pine nut).
Personally recommend as user of such.
Btw, if you still use cotton bedclothes (aka bed linen :-) ) it is time to go to 100% linen clothing. Much better.
https://bio-textiles.ru/catalog/kedrovye-podushki/podushka-kedrovoe-ocharovanie-naturel-50-70/
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