65427ca9_by___Toddler_Sleep_Consultants__Impact_on_Sleep
[Week] 52-55 Weeks [Name] Programs [Description] Your toddler builds on his understanding of sequences, and starts to learn that there is more than one way (or one “sequence” to accomplish the same task. This is also when most toddlers start showing strong preferences (i.e. pink socks are great, but green socks are bad). [Impact on Sleep] 
Welcome to toddlerhood, parents! At this stage, separation anxiety often comes back with a vengeance. You may also start to see some nap time and bedtime resistance at this point, as your toddler is learning to assert his independence and preferences.
Baby Sleep Chart | The Baby Sleep Site - Baby / Toddler Sleep Consultants
Impact on Sleep