I wanted to buy a Japanese futon set for my futon-style bed (see link below). But why do the photos show someone sleeping on the bare mattress and just under the duvet? No covers? How is that supposed to work when/if you get the mattress or duvet dirty? I would want to buy a duvet cover, but does that defeat the whole purpose of the Japanese thing? Any Japanese people or former inhabitants around?? [[https://www.amazon.co.uk/EMOOR-Compact-Sized-Japanese-Futon-Size/dp/B00BLCRWYI/ref=sr_1_6?dib=eyJ2IjoiMSJ9.06Yt1oPVMm0zSpjMpaOGYNS2kqRGhFlTVqjnzF60xhOUXCXiTrFvxaUVthqUl-IGMmrE9VMyFHLcCeocBVyxOlrBReTUszAcLDOtWyfWKXBZZENpUFPkZsV_4kbHiuOuO6StKjpznW_bMMTon6hUUdL4Bgq9DP_K4slYRkkBiV1kE6vZEVjOwhwedE_sRuDTo0_QZcMNzvbK6QKGFYMa54YNh6TrweWXn4ylG7OqV6k.qMCBGc4DJ40tuhoVmawfCd7yeK728m4Ix2hdO0rWaC8&dib_tag=se&keywords=EMOOR%2BJapanese%2BFoldable%2BFuton%2BMattress%2BSet&nsdOptOutParam=true&qid=1736443519&sr=8-6&th=1&ufe=app_do%3Aamzn1.fos.d7e5a2de-8759-4da3-993c-d11b6e3d217f https://www.amazon.co.uk/EMOOR-Compact-Sized-Japanese-Futon-Size/dp/B00BLCRWYI/ref=sr_1_6?dib=eyJ2IjoiMSJ9.06Yt1oPVMm0zSpjMpaOGYNS2kqRGhFlTVqjnzF60xhOUXCXiTrFvxaUVthqUl-IGMmrE9VMyFHLcCeocBVyxOlrBReTUszAcLDOtWyfWKXBZZENpUFPkZsV_4kbHiuOuO6StKjpznW_bMMTon6hUUdL4Bgq9DP_K4slYRkkBiV1kE6vZEVjOwhwedE_sRuDTo0_QZcMNzvbK6QKGFYMa54YNh6TrweWXn4ylG7OqV6k.qMCBGc4DJ40tuhoVmawfCd7yeK728m4Ix2hdO0rWaC8&dib_tag=se&keywords=EMOOR%2BJapanese%2BFoldable%2BFuton%2BMattress%2BSet&nsdOptOutParam=true&qid=1736443519&sr=8-6&ufe=app_do%3Aamzn1.fos.d7e5a2de-8759-4da3-993c-d11b6e3d217f&th=1]]