The new deal will see DFS support British athletes during the ongoing Pyeongchang 2018 and Tokyo 2020 Olympic Games.

DFS first teamed up with the BOA in 2014 in the run-up to Rio 2016.

BOA chief executive Bill Sweeney said he was looking forward to collaborating with DFS.

"We were privileged to have benefitted from a fantastic and productive partnership with DFS through to Rio 2016 and it is therefore with great excitement that we can confirm the continued relationship up to and including Tokyo 2020," he said.

"We will be working in collaboration with DFS to utilise the ever-evolving digital landscape, whilst engaging the nation through inspirational athletes and their pursuit of representing Team GB.

"DFS' commitment to high-quality products and service and its place at the centre of British industry makes it a perfect partner for the BOA and all we hope to achieve over the next four years."

DFS chief executive Ian Filby added: "For almost 50 years DFS has been committed to delivering the highest quality, hand-made comfort into the heart of British homes.

"You could say we are the experts in making Britain more comfortable, which is why we are delighted once again to use our expertise to back Team GB, a team of extraordinarily hardworking and inspiring athletes.

"At Rio 2016, Team GB inspired a nation with their commitment, endeavour and excellence.

"We hope the support of everyone at DFS can help Team GB reach the same heights at Pyeongchang 2018 and Tokyo 2020.

"It's always that little bit harder to compete away from familiar surroundings, but together with Team GB we'll be working to help our athletes enjoy a bit of comfort and find a home away from home."