65427ca9_by___Toddler_Sleep_Consultants__Impact_on_Sleep
[Week] 72-76 Weeks [Name] Systems [Description] Your toddler is capable of understanding larger systems now – for instance, she knows that the procedures and expectations at daycare are different than those at home. Your toddler can also change her behavior and actions to suit different situations, which explains why your toddler may be sweet and helpful for the babysitter, but grumpy and whiny for you (which is not at all uncommon, by the way!). [Impact on Sleep] 
If it hasn’t already, your toddler’s ‘toddler attitude’ may show itself full-force around this time. Continue to enforce your sleep time boundaries and limits. By 17 or 18 months, tantrums are common. Toddler tantrums at bedtime and nap time are especially frustrating – it’s key that you stand firm during these tantrums. Also, watch for the 18 month sleep regression that happens at about this time; it tends to be one of the toughest.
Baby Sleep Chart | The Baby Sleep Site - Baby / Toddler Sleep Consultants
Impact on Sleep