This guide combines insights and advice from a number of resources but especially research by Jodi Mindell, PhD, and her book Sleeping through the night (2005, Harper Collins), and Richard Ferber's book Solve your child's sleep problems (revised edition 2006, Fireside).
Blunden, SL. (2012) Behavioural sleep disorders across the developmental age span: An overview of causes, consequences and treatment modalities Psychology 3.03: 249.
National Sleep Foundation (2015) Sleep topics
Nixon, GM et al. (2009) Falling asleep: the determinants of sleep latency Arch Dis Child 2009;94:9 686-689
Meltzer, LJ. (2010) Clinical management of behavioral insomnia of childhood: treatment of bedtime problems and night wakings in young children Behavioral Sleep Medicine 8.3: 172-189.
Mindell, JA. (2006) et al. Behavioral treatment of bedtime problems and night wakings in infants and young children Sleep 29.10: 1263.
Mindell, JA. et al. (2015) Bedtime Routines for Young Children: A Dose-Dependent Association with Sleep Outcomes Sleep 38.5: 717-722.
Volkovitch et al. (2015) Sleep patterns of co-sleeping and solitary sleeping infants and mothers: a longitudinal study Sleep Medicine published online 2 September
Watson, N. F., et al. Recommended Amount of Sleep for a Healthy Adult: A Joint Consensus Statement of the American Academy of Sleep Medicine and Sleep Research Society Journal of Clinical Sleep Medicine: official publication of the American Academy of Sleep Medicine (2015)