• Kathryn M Hayward, C Celeste Johnston, Marsha L Campbell-Yeo, Sheri L Price, Shauna L Houk, Robin K Whyte, Susan D White, and Kim E Caddell.
• J Obstet Gynecol Neonatal Nurs. 2015 Mar 1;44(2):193-202.

ObjectiveTo evaluate the efficacy of cobedding on twin coregulation and twin safety.DesignRandomized controlled trial (RCT).SettingTwo university affiliated Level III neonatal intensive care units (NICUs).ParticipantsOne hundred and seventeen sets (N = 234) of stable preterm twins (<37 weeks gestational age at birth) admitted to the NICU.MethodsSets of twins were randomly assigned to be cared for in a single cot (cobedded) or in separate cots (standard care). State response was obtained from videotaped and physiologic data measured and recorded for three, 3-hour sessions over a one-week study period. Tapes were coded for infant state by an assessor blind to the purpose of the study.ResultsTwins who were cobedded spent more time in the same state (p < .01), less time in opposite states (p < .01), were more often in quiet sleep (p < .01) and cried less (p < .01) than twins who were cared for in separate cots. There was no difference in physiological parameters between groups (p = .85). There was no difference in patient safety between groups (incidence of sepsis, p = .95), incidence of caregiver error (p = .31), and incidence of apnea (p = .70).ConclusionsCobedding promotes self-regulation and sleep and decreases crying without apparent increased risk.© 2015 AWHONN, the Association of Women's Health, Obstetric and Neonatal Nurses.

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