KPop Demon Hunters Duvet Sets: 12 picks from £16.99

Two of these listings are the same product entered twice: the hermet 100% cotton single set at £25.15 appears at both ends of the page, same title, same price. Treat it as one option, not two. And before you get to the designs, check what size you actually need, because the titles here are not consistent about it. Most say single. One, the Derpy Demons set at £34.99, says double. Three from Halantex give no bed size word at all, only a duvet cover of 140 x 200 cm with a 70 x 90 cm pillowcase, so measure the duvet already on the bed and compare the numbers yourself rather than trusting the label on the packet.

The other thing worth knowing: one entry on this page is not a duvet set. The Character World fitted bedsheet at £16.99 (Huntrix Emblem design) is a sheet with an elastic edge, no cover, no pillowcase. Useful alongside a set, useless on its own if a cover is what you came for.

Fabric is stated unevenly. The hermet set says 100% cotton, the three Halantex sets say microfibre, and several of the Character World and KPop Demon Hunters titles say polycotton, though the £36.65 Huntrix and Saja Boys set does not name a fabric at all. Beyond that, you are choosing a picture: Huntrix Power, Unite, Derpy, the Rumi Mira and Zoey print. Ask the child which one, then let the price follow, because £22.99 and £39.99 here buy the same single set in a different design.