Inclusion Criteria:  Pregnancy 12-28 weeks gestation at time of intervention start 18 years of age or older Regular access to a web-enabled computer, phone or tablet Ability to read and speak English, and to provide informed consent Poor sleep quality (PSQI > 5)  Exclusion Criteria:  Self-reported sleep disorder (e.g. sleep apnea, narcolepsy, parasomnia, circadian rhythm disorder) Shift-work or nighttime caregiving responsibilities Psychological, medical, or other issues that necessitate priority treatment (e.g. active suicidality, probable depression (PHQ-9 ≥ 10), psychosis, on bed rest, multiple gestation) Current regular mindfulness practice (>20 minutes/week)