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Bed-sharing and the infant’s thermal environment in the home setting
  1. S A Baddock,
  2. B C Galland,
  3. M G S Beckers,
  4. B J Taylor,
  5. D P G Bolton
  1. Department of Women’s & Children’s Health, Dunedin School of Medicine, University of Otago, Dunedin, New Zealand
  1. Correspondence to:
    Dr B Galland
    Department of Women’s & Children’s Health, University of Otago, PO Box 913, Dunedin, New Zealand; barbara.gallandstonebow.otago.ac.nz

Abstract

Aims: To study bed-sharing and cot-sleeping infants in the natural setting of their own home in order to identify differences in the thermal characteristics of the two sleep situations and their potential hazards.

Methods: Forty routine bed-sharing infants and 40 routine cot-sleeping infants aged 5–27 weeks were individually matched between groups for age and season. Overnight video and physiological data of bed-share infants and cot-sleeping infants were recorded in the infants’ own homes including rectal, shin, and ambient temperature.

Results: The mean rectal temperature two hours after sleep onset for bed-share infants was 36.79°C and for cot-sleeping infants, 36.75°C (difference 0.05°C, 95% CI −0.03 to 0.14). The rate of change thereafter was higher in the bed-share group than in the cot group (0.04°C v 0.03°C/h, difference 0.01, 0.00 to 0.02). Bed-share infants had a higher shin temperature at two hours (35.43 v 34.60°C, difference 0.83, 0.18 to 1.49) and a higher rate of change (0.04 v −0.10°C/h, difference 0.13, 0.08 to 0.19). Bed-sharing infants had more bedding. Face covering events were more common and bed-share infants woke and fed more frequently than cot infants (mean wake times/night: 4.6 v 2.5).

Conclusions: Bed-share infants experience warmer thermal conditions than those of cot-sleeping infants, but are able to maintain adequate thermoregulation to maintain a normal core temperature.

  • bed-sharing
  • co-sleeping
  • SIDS
  • thermoregulation

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