I dressed all over in M&S thermals to see if it saved putting the

Dianne Bourne put Marks and Spencer's range of thermal wear to the test following advice to "heat the human, not the home"

Shoppers excited by 'cosy collection' at M&S which saves you from

M&S shoppers 'couldn't be more happy' about 'luxurious' £60

Shoppers excited by 'cosy collection' at M&S which saves you from

Ikea winter sale on everything from Christmas decorations to

Pure Cotton Crew Neck Sweatshirt

2pk Heatgen™ Thermal Light Long Sleeve Tops, M&S Collection

100 Denier Thermal Heatgen™ Opaque Tights, M&S Collection

M&S shoppers snap up £35 'cosy' thermal jeans that are a 'godsend

Heatgen™ Medium Fleece Thermal Top, M&S Collection

Add a cosy extra layer with this lightweight thermal top. Long-sleeved style with added stretch for exceptional comfort. Super-soft Heatgen Plus™

Heatgen™ Medium Thermal Long Sleeve Top

Shoppers excited by 'cosy collection' at M&S which saves you from