Perinatal Research on Improving Sleep and Mental Health

The goal of this clinical trial is to compare two sleep programs in pregnant people with insomnia. The main questions it aims to answer are: 1. What is the efficacy of digital cognitive behavioral therapy for insomnia (CBT-I) versus digital sleep hygiene education (SHE) for preventing perinatal depression? 2. Is the effect of digital CBT-I on perinatal depression mediated through prenatal insomnia symptom improvement? 3. Is the effect of digital CBT-I on perinatal depression moderated by baseline depressive symptom severity? Participants will receive one of two sleep programs - SHE or CBT-I. Both involve six weekly online sessions. Participants will complete surveys and interviews until 1 year postpartum.