Hana, who loves to sleep and has a hobby of sleep research, is sharing her apartment with her student (and relative) Takashi Kiichi. There are lots of sleeping laws that can be used right away in such two lives… Let's sleep together with the right mood: our life together begins!
Koi to Utatane is a completed manga by Torio Chinori, first published in 2016. It blends romance, comedy and slice of life. You can read all 30 available chapters of Koi to Utatane online for free on MangaPulse; the newest is Chapter 28.2, added 2020-09-26. The series is finished, so you can read it from start to end in one go.