One of the many problems with the internet is that it’s increasingly difficult to know if something has become ubiquitous overnight, or if your algorithm is just serving you the sort of slop it thinks you’re stupid enough to buy.

Case in point: nightdresses. Previously the preserve of pioneer women, convalescents and Victorian ghost children, nightdresses suddenly seem to be everywhere. I can’t open my phone without seeing a glamorous woman going about her morning wearing a beautiful and expensive nightgown.

‘Retailers have informed me that sales of nightdresses are higher than ever at present,’ Hannah Banks-Walker, a commissioning editor at Harper’s Bazaar , tells me. Delicious news. I am not alone. I must admit I had until recently regarded nightgowns as something of a secret shame.

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