Yes. You won't find them next to the displays. Instead, you'll find them on the ground floor where all of the stock is.
Yes they sell all sizes of bedding
Yes they do
https://www.ikea.com/us/en/cat/twin-beds-16285/ Idk I'm not working there, but I guess whatever bedsize they're selling, they offer the bedsheets as well.
Its actually a seasonal item, they don't always have it, and no xl comforters or blankets etc.and no they don't sell twin xl bed but they do sell sheets.
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