Wouldn’t that be cozy? The closest majors would probably be psychology or neuroscience, both of which study sleep behaviors. But I suspect that isn’t what you mean. If you’re sleeping more than usual or have difficulty getting out of bed, it’s possible it’s just seasonal, and/or you’re exhausted after a tough semester and need some rest. If it persists, it’s worth checking in with a doctor. Meanwhile, why not read (in bed of course!) a history of sleep science called Mapping the Darkness? bit.ly/bcl-mapping-darkness