Somnee's smart sleep headband Photo: Courtesy of Somnee
Somnee, a Berkeley, California-based sleep aid device company, raised $10 million in a seed extension round led by Khosla Ventures, CEO Tim Rosa tells Axios exclusively.
The big picture: Investors are seeking to capitalize on Americans' obsession with sleep health, following the popularity of Oura rings and smartwatches that track sleep patterns.