There's no questioning that cosy season has arrived, and whether working from home or enjoying a relaxing weekend, staying warm is always at the top of the agenda.

When we discovered Amazon customers had been singing the praises of a self-heating hoodie that features a built-in unique foil layer for warmth, we dashed to the online retailer to investigate the excitement.

The Silentnight Heat Genie self heating oversized blanket hoodie, which costs £20, functions by employing a distinctive heat-reflecting foil layer that bounces warmth back to the person wearing it, meaning no electricity is needed.

It features a cosy sherpa fleece lining for additional snugness, while also providing practical elasticated sleeves making it perfect for pottering about indoors, reports the Liverpool Echo.

The hoodie has a spacious pocket at the front which is brilliant for storing a 3pm treat or for warming hands during chilly weather.

Available in one size, in a neutral grey shade, the hoodie's ideal for throwing on over various loungewear, pyjamas, and leggings.

Over at Amazon, it's proving popular with customers. One noted: "Soft, good fit and very warm. Will get great use of this indoors during the winter months. Would recommend." Another person added: "Brilliant I love it. Feels like I’m wearing a hug. Easy to wash and dry."

Despite the largely positive feedback, one customer was less impressed with the dimensions, noting: "Very much smaller than expected and not great quality, wouldn't buy again for myself but for a small adult or child it's ideal."