Table 3 Frequency and duration of usual shared sleep practice
|  | n = 3286 (%) |
|---|---|
Frequency of shared sleep (missing = 55) | |
 Every night/normal routine | 487 (14.8) |
 Most nights (4–6/week) | 237 (7.2) |
 Some nights (2–3/week) | 240 (7.3) |
 Occasionally (about 1/week) | 1081 (32.9) |
 Rarely (less than 1/week) | 398 (12.1) |
 Other | 51 (1.6) |
 Baby has never shared sleep surface | 792 (24.1) |
Average time of shared sleep (missing = 105) | |
 Less than 1 h | 745 (23.0) |
 1–3 h | 958 (29.6) |
 4–6 h | 322 (10.0) |
 More than 6 h | 415 (12.8) |
 Baby has never shared sleep surface | 796 (24.6) |