Retailer West Elm has expanded its collaboration with Leesa Sleep, the direct-to-consumer mattress brand, to include all three of its UK stores.

The U.S furniture and home accents retailer — which already has a tie-up with Leesa in its domestic market — is extending the partnership to its South East England stores at Westfield London, Kingston and Tottenham Court Road.

To mark the launch, Leesa is making an additional donation in London next month when it will give 50 mattresses to London-based charity the Single Homeless Project.

"A lasting partnership requires shared values. Both West Elm and Leesa are organisations with a powerful social mission," said David Wolfe, co-founder and CEO of Leesa Sleep, whose European HQ is in Manchester.

"Since day one, Leesa has donated one mattress for every ten sold and to-date we have donated over 30,000 mattresses. Our social impact programs make Leesa a different kind of company."

West Elm President Alex Bellos said: "We share a mission with Leesa of helping our customers make conscious purchase decisions that can shape their communities and make a difference in their everyday lives at home. We are pleased to extend our partnership with Leesa to the UK and offer our customers another compelling reason to shop for change at their local West Elm UK store."