The Financial Times reports that entrepreneur James Proud is seeking $40 million in funding for his Sense sleep monitor.

London-born tech entrepreneur James Proud skipped college to move to San Francisco as a teenager. Now, less than a year after Kickstarter backers put up $2.4m for his Sense sleep monitor, the 23-year-old is already looking further afield, with a $40m funding round led by Singapore’s Temasek.

The funding for Hello, which comes at an unusually early stage for the Singapore state investment company, values Mr Proud’s three-year-old company at $250m, said people familiar with the deal.

Ahead of Fitbit’s listing this week and a drive into fitness tracking by the likes of Apple and Google, the deal is the latest signal of global investor interest in fast-growing health-tech companies.