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"

2pk Heatgen™ Thermal Light Built-up Shoulder Vest

Heatgen™ Medium Fleece Thermal Top, M&S Collection

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

SIMIYA Womens Thermal Leggings, High Waisted Long Johns for Ladies

Ikea winter sale on everything from Christmas decorations to

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

Richard Blackledge - YorkshireLive Online

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

M&S shoppers praise £16 thermal leggings that are 'perfect' for

M&S Womens 100 Denier Thermal Tights, Extra Large, Black

I wore M&S viral £16 thermal leggings and I barely needed the

Marks and Spencer's £20 'toasty' item has shoppers 'turning

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

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

Heatgen™ Medium Short Sleeve Thermal Top, M&S Collection