Mothers' Perceptions of the Cardboard Box as a Potential Sleep Space

Due to increasing popularity, our hospital began considering distributing cardboard boxes combined with safe sleep education to new mothers. As a first step in studying the impact of this intervention on bedsharing in our community, we sought to understand mothers' perceptions of the cardboard box.

We recruited primarily low-income, English- or Spanish-speaking mothers of infants aged 2 to 16 weeks during routine primary care visits. Participants responding to a cross-sectional survey about infant sleep practices were invited to participate in in-depth interviews about the cardboard box. We used a grounded theory approach and the constant comparative method until saturation was reached.

Of 120 participants in the survey, 50 (42%) participated in the qualitative study. Participants were mothers of infants aged ≤4 weeks (46%), 4 to 8 weeks (32%), and 16 weeks (22%). Of 50 participants, 52% said they would use the cardboard box for their infant to sleep in, if provided, compared with 42% who said they would not and 6% were unsure. Three themes emerged from the data: (1) safety of the cardboard box; (2) appearance, and (3) variation in planned use. Some participants planned to place the cardboard box in their bed.

Participants in our study were divided about whether they would use the cardboard box for their infant to sleep in. If distributed, hospital staff should advise families to not place the cardboard box in their bed. Next steps include determining bedsharing frequency among parents who choose to use the cardboard box for their infant.