Chapter 8. Sleeping Arrangement

Table 8.1. Percent of babies sleeping at night at each longest interval without waking by infant age or survey month¹ Infant Feeding Practices Study II
	Infant age			Survey month
	2 weeks	1 month	2 months	3	6	9	12
<2 hours	43.9	14.6	2.9	1.00	0.48	0.42	0.45
3 to 4 hours	47.4	55.4	30.1	14.11	11.38	9.71	6.60
5 to 6 hours	6.8	23.9	41.7	35.96	23.90	21.24	16.44
7 to 8 hours	1.5	4.9	17.9	24.71	23.47	19.78	16.33
>=8 hours	0.4	1.2	7.5	24.23	40.77	48.86	60.18
Total (%)	100	100	100	100	100	100	100
N	2,278	2,281	2,282	2,311	2,092	1,926	1,788
¹Table is based on variables: M3H1A2W, M3H1A1M, M3H1A2M, M3H1ANW, M6H1, M9H1, MWH1