M&S Slashes 20% Off 'Cosy' Duvet Coat as Shoppers Rush to Buy
M&S cuts 20% off popular Thermowarmth duvet coat

As the UK shivers through a cold snap, Marks & Spencer has delivered a timely winter warmer for its customers. The retailer has applied a significant 20% discount to its popular Thermowarmth™ Quilted Duvet Coat, sending shoppers into a frenzy to secure one before stocks vanish.

The Must-Have Winter Layer

Originally priced at £110, the stylish padded coat is now available for just £88. Designed for maximum comfort during the chilliest months, the coat features an oversized, quilted silhouette, a snug hood, and advanced insulation technology. It's being hailed as the perfect solution for frosty school runs, bracing dog walks, or a bleak winter commute.

Beyond warmth, the coat is practical for Britain's unpredictable weather. It is equipped with M&S's Stormwear™ water-repellent technology, designed to shield the wearer from sudden rain showers and keep them dry.

High Demand and Rave Reviews

The coat's popularity is evident, with the black and tan colourways already sold out in nearly all sizes. However, as of early January, the stylish light green shade remains available in sizes 10 to 24, though it is expected to sell out quickly.

Customer feedback has been overwhelmingly positive, contributing to the coat's impressive 4.8-star average rating. One satisfied shopper detailed its practicality, stating: "Great length, splits at side necessary for driving. The hood is so useful when windy and walking the dog these chilly mornings. Pockets big enough for all your bits... Very pleased with this shape."

Another echoed the sentiment on warmth, commenting: "Warmest jacket I’ve ever owned. I’m constantly recommending it to friends and family. Would/will buy this again." A minor critique mentioned the design could feel slightly restrictive around the collar and hood for some.

Alternative Winter Coat Options

For those seeking other options for wet and cold conditions, the market offers several alternatives. The Next Shower Resistant Padded Hooded Coat, priced at £65 and available in five colours, has also received praise for its warmth and dryness. Meanwhile, the ASOS DESIGN oversized fleece-lined raincoat provides a fashionable choice at £60 in navy or khaki.

With the discount in place and winter firmly set in, M&S's duvet coat represents a key purchase for anyone looking to upgrade their outerwear this season. The combination of style, proven warmth, and now a reduced price point makes it a standout retail offer for January 2026.