The cardboard box may actually be better than many cribs, at least from the perspective of reducing the risk of SIDS: https://www.nichd.nih.gov/sts/about/risk/

The cardboard box may actually be better than many cribs, at least from the perspective of reducing the risk of SIDS: https://www.nichd.nih.gov/sts/about/risk/Pages/reduce.aspx https://www.nichd.nih.gov/sts/about/risk/Pages/reduce.aspx