It's not just getting hot in here, it's extremely hot in here...which makes finding an outfit in the morning quite the challenge. So it's serendipitous that boudoir dressing is majorly trending RN, largely thanks to the Autumn/Winter 2026 runways — with lace-trimmed slip dresses featuring at McQueen, Fendi and Christian Cowan.

new york, new york february 13: a model walks the runway for the christian cowan fashion show during the fw26 new york fashion week on february 13, 2026 in new york city. (photo by victor pagan/getty images)pinterest
Victor Pagan//Getty Images
Christian Cowan AW26

Last month, Madonna and Charli XCX confirmed that the trend won't be going anywhere, as they both showed up in lace dresses at the (record-breakingly-hot) Saint Laurent Spring/Summer 2027 show, where creative director Anthony Vaccarello is a huge purveyor of the look.

All of this is to say that dressing for bed has never been more chic. The street-style set know that a nightie dress is an easy way to look put together while keeping cool — simply add shades and a pair of pumps.

milan, italy march 01: tamara kalinic wears black sunglasses, shiny black leather oversized jacket, black sheer mesh lace light pink dolce gabbana mini dress, shiny black leather bag, shiny black slingback pointed toe heels leather shoes, outside dolce gabbana, during the milan fashion week womens fall/winter 2025 2026 on march 1, 2025 in milan, italy. (photo by edward berthelot/getty images)pinterest
Edward Berthelot//Getty Images

Thankfully, this trend has hit the high street in a big way, with lace-trimmed shorts, cami tops and floaty dresses popping up everywhere. Top of our current wishlist? This nightie mini dress from M&S. The loose silhouette and skater skirt make it perfect for chucking on in the morning with a pair of ballet flats.

person in a light pink lace trimmed dress holding sunglasses indoors.pinterest
Marks & Spencer

If you're looking for a some more office-appropriate coverage, the dress will work well layered over a classic white tee.

M&S Satin Lace Insert Mini Skater Dress

Satin Lace Insert Mini Skater Dress

M&S Satin Lace Insert Mini Skater Dress

It comes in three colourways of white, black and dusty pink, meaning there's one to suit every personality. Just get ready to ignore people when they ask if you rolled out of bed...

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Rebecca Jane Hill
Senior Fashion Editor

Rebecca Jane Hill is the Senior Fashion Editor at Cosmopolitan UK. She has previously contributed to publications including Vogue, Elle, Marie Claire, Harper’s Bazaar, Refinery29, The Face, Glamour and Stylist. She started her own magazine, Sister, in 2012 whilst at university. Focused around feminism, fashion and culture, it went on to produce 12 globally stocked print issues, as well as countless events and partnerships. She closed the magazine in 2023.

Rebecca has been an associate lecturer at London College of Fashion since 2018, where she teaches on the Fashion Journalism course. She is a passionate second-hand shopper and is constantly on the lookout for new design talent.