Brown, A. & Harries, V.(2015) Infant sleep and night waking during infancy: associations between infant weight, breastfeeding and complementary food intake Breastfeeding medicine 10 (5) 246-252 doi:10.1089/bfm.2014.0153
Doan, T., Gardiner, A., Gay, C.L., & Lee, K.A. (2007). Breast-feeding Increases Sleep Duration of New Parents. The Journal of perinatal & neonatal nursing, 21(3), 200-206. 35.
Kendall-Tackett, K., Cong, Z., & Hale, T.W. (2011). The effect of feeding method on sleep duration, maternal well-being, and postpartum depression. Clinical Lactation, 2(2), 22-26.
Middlemiss, W., et al (2012) Asynchrony of mother–infant hypothalamic–pituitary–adrenal axis activity following extinction of infant crying responses induced during the transition to sleep Early Human Development 88 277-232 doi:10.1016/j.earlhumdev.2011.08.010