You are buying on marketing which is neat as that's the worst way to buy. This is BIFL where we buy on knowledge. BIFL bedding: You give zero fucks about thread count. You give zero fucks about the brand/price. You buy percale weave products. You buy long staple cotton AKA Egyptian AKA Pima AKA Supima Seeing "cotton" means its not item 4 and they are getting you good. More on reddit.com

Dark gray cotton fill comforters are definitely going to be difficult to find. Comforters consist of a shell and fill. So when you search, it may have a 100% cotton shell but a polyester fill. 100% cotton fill comforters are not common and not really recommended because while they are breathable cotton absorbs moisture and can get nasty really easily from sweat. Additionally, finding colors for this type of comforter with such a unique fill is going to be difficult. The easy way out is definitely to buy the 100% cotton duvet and use a dark gray duvet cover. If you’re open to other fills, you should be able to do a comforter with the color you want with the cotton shell. More on reddit.com

I've been happy with Targets cotton sheets, I have a set that are 6 years old. Good condition, no piling. I have bought two more sets recently and one set is piling a lot sooner than expected. For duvets, I just bought my second one of these https://a.co/d/iZpAp8g I also bought these as flat sheets to use on my couch instead of a microfiber cover, and I've been happy with it. The first duvet I bought in like Feb 2023? And it has held up great. I wanted a second so I'd have a clean spare, or a nice blanket in the spare bed. We're expecting baby 2 and anticipating sleeping in two different beds so I wanted both beds to be delightful not one being the crappy floor bed in the nursery. More on reddit.com