Living with an energy-limiting chronic illness, Val spends a lot of time in her bedroom. Her older sister Lia had always found ways to make "bed world" feel just as fun as the outside world. But all that changed after Lia died in a tragic accident--an accident Val feels partially responsible for. On an online peer support forum, she meets someone she can finally open up to--a voice hearer who's dealt with her own share of grief. Through a series of letters to her sister, Val confronts life after her sister's death as she tries to find a way to make "bed world"--and the rest of the world--livable again.