TABLE 1

Sleep Arrangement for Studies Involving Mother, Infant, and Father/Siblings

Sleep ArrangementNo. of Studies With Time in Sleep ArrangementStudy Time in Arrangement Median (IQR, Maximum), %
Embedded Image21a/2171 (52–86, 100)
19b/2133 (13–51, 84)
8/212 (1–7, 37)
  • a In one study, the third person was a sibling, in another the father slept “top ‘n tail” with head at opposite end of the bed (both for 100% of time).

  • b In 2 studies, a sibling had contact with the infant. In another, siblings were present in addition to the father, sleeping on the father's side, having no contact with the infant during sleep.