Comparison of sleep, satisfaction and staff time across the three sleeping conditions
| Bed, n = 18 | Side-car crib, n = 23 | Stand-alone cot, n = 20 | Bed v stand-alone cot | Side-car crib v stand-alone cot | Bed v side-car crib | ||||
|---|---|---|---|---|---|---|---|---|---|
| Median proportional duration (range) | Mean difference (95% CI) | p Value (Mann–Whitney U) | Mean difference (95% CI) | p Value (Mann–Whitney U) | Mean difference (95% CI) | p Value (Mann–Whitney U) | |||
| Maternal sleep duration | 59.4 (18.7–98.2) | 65.6 (11.8–98.2) | 66.7 (12.5–99.8) | −0.29 (−11.0 to 10.4) | 0.499 | −5.26 (−15.8 to 5.2) | 0.287 | 4.97 (−4.6 to 14.6) | 0.642 |
| Infant sleep duration | 64.6 (20.6–99.8) | 66.6 (6.5–98.1) | 67.2 (22.8–98.6) | −2.87 (−13.5 to 7.7) | 0.962 | −5.29 (−16.0 to 5.4) | 0.375 | 2.42 (−8.3 to 13.1) | 0.513 |
| Mean score (SD) | p Value (t test) | p Value (t test) | p Value (t test) | ||||||
| Maternal satisfaction | 3.1(1.1) | 3.2 (0.9) | 2.8 (0.8) | 0.39 (−0.2 to 1.0) | 0.217 | 0.46 (−0.9 to 1.0) | 0.096 | −0.08 (−0.7 to 0.6) | 0.820 |
| Mean frequency per hour (SD) | |||||||||
| Calls to staff (frequency/h) | 0.13 (0.2) | 0.17 (0.3) | 0.03 (0.1) | 0.10 (0.02 to 0.2) | 0.017 | 0.14 (0.03 to 0.24) | 0.010 | −0.03 (−0.2 to 0.1) | 0.617 |
| Visits by staff (frequency/h) | 0.40 (0.5) | 0.35 (0.6) | 0.28 (0.7) | 0.12 (−0.17 to 0.41) | 0.401 | 0.06 (−0.22 to 0.35) | 0.654 | 0.05 (0.2 to 0.3) | 0.657 |
| Mean proportional duration (SD) | |||||||||
| Duration of visits by staff | 2.12 (3.6) | 1.25 (1.9) | 1.05 (3.6) | 1.1 (−0.7 to 2.8) | 0.233 | 0.20 (−1.1 to 1.6) | 0.763 | 0.87 (−0.5 to 2.2) | 0.205 |