Comcast Ventures was among the participants in the first funding round closed by sleep tracker developer Eight.

US-based smart bedding startup Eight closed a $6m seed round on Wednesday featuring Comcast Ventures, the corporate venturing unit of media and cable service Comcast.

Other investors in the round included Y Combinator, Yunqi Partners, Azure Capital, Cota Capital, Vast Ventures, Stanford University, Galvanize Ventures and angel investor Jared Friedman.

Eight has developed a smart mattress cover that works as a sleep tracker, recording data about sleep patterns and bedroom environment and linking with other connected devices to regulate environmental…