TABLE 2

Initial Sleep Location, Surface, Position, and Sleep Environment According to Age

Variable1 Month (n = 160)3 Months (n = 151)6 Months (n = 147)
First sleep location
 Parent room93 (58)68 (45)38 (26)
 Own room54 (34)78 (52)101 (69)
 Other room13 (8)4 (3)7 (5)
Sleep surface
 Crib (crib, cradle, bassinet, playpen)127 (79)136 (90)130 (88)
 Adult bed or mattress13 (8)10 (7)11 (7)
 Car seat10 (6)3 (2)2 (1)
 Swing4 (3)00
 Other3 (2)1 (1)1 (1)
 Bedside co-sleeper (“sidecar”)2 (1)1 (1)1 (1)
 Sofa002 (1)
Position placed on first sleep surface
 Supine138 (86)123 (82)98 (67)
 Side12 (8)15 (10)22 (15)
 Prone7 (4)12 (8)25 (17)
 Indeterminate (not supine)3 (2)1 (1)2 (1)
Loose/nonapproved items on sleep surface
 Loose bedding134 (84)112 (74)101 (69)
 Bumper pads39 (24)64 (42)70 (48)
 Pillow/cushion31 (19)29 (19)30 (20)
 Stuffed animal/pillow-like toy26 (16)39 (26)49 (33)
 Sleep positioner/wedge22 (14)11 (7)1 (1)
 Another person14 (9)9 (6)12 (8)
 Other11 (7)8 (5)5 (3)
 Mobile/hanging toy within child’s reach6 (4)7 (5)11 (7)
 Hard toy5 (3)5 (3)18 (12)
 SIDS monitor5 (3)4 (3)2 (1)
 Bottle3 (2)1 (1)8 (5)
 Loose cord/electrical wire3 (2)2 (1)2 (1)
 Pet1 (1)1 (1)3 (2)
Is first sleep location shared with another person?
 No145 (91)142 (94)135 (92)
 Yes; parent14 (9)9 (6)11 (7)
 Yes; other001 (1)