Artist Tracey Emin's £2.54 million bed - complete with empty vodka bottles and cigarette butts - is returning to the Tate more than 15 years after it first caused shockwaves at the London gallery.

My Bed hit the headlines when it was shortlisted for the Turner Prize - and displayed at Tate Britain - in 1999.

Earlier this month the notorious work fetched £2.54m at auction, a record for the artist, when it was bought by dealer and White Cube gallery owner Jay Jopling.

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It has now emerged Jopling acquired the work on behalf of German industrialist and collector Count Christian Duerckheim, who has announced the long-term loan to the Tate for at least 10 years.

It is not yet known whether the bed will go on display at Tate Britain or Tate Modern and a gallery spokesman said details would be announced in the autumn.

Now 51 and a CBE, Emin made the piece, complete with stained sheets and discarded underwear, in her Waterloo council flat in 1998.

The work captured her chaotic life after a bout of suicidal depression following a relationship breakdown.

Millionaire collector Charles Saatchi, who bought My Bed for £150,000 in 2000, sold it at Christie's. He once displayed ut in the dining room of his Belgravia home.