Your place is super cool btw! But when I moved I didn’t have a piano or fancy art, but for the couch the movers used cling wrap to cover it. Then blankets or you could use towels over furniture pieces that needed it then cling wrapped it to stay. Space bags are a huge help if you need to save space and make things waterproof or just protected from the elements like dirt, etc. For the rugs I would roll them so the bottom is to the outside and cling wrap it. For my mattresses I just bought plastic mattress covers from bed, bath and beyond and placed them in it at they will get dirty. I will paste a link to the ez mover, which is super helpful when moving things yourself! I know you said you and your friends are moving the things, but if you have it in the budget it’s super helpful to hire just movers from two men and a truck to pack your uhaul as they know how to pack it to optimize the most space. Plus they can provide straps, blankets, cling wrap and wrap your items for you at an extra cost. Just a suggestion, but it’s honestly worth the money if you are able to pay for it. Best of luck!!

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