The 18-Month Regression
Eighteen months is one of the hardest ages for sleep. A language explosion, growing independence, teething (molars), and separation anxiety all converge. Previously sleep-trained babies may regress, and starting fresh sleep training at this age requires extra patience. The good news: this is also the age where consistent boundaries start to pay off dramatically.
Methods at 18 Months
- Ferber: Still effective. Consider starting intervals at 5 minutes instead of 3 to avoid over-stimulating.
- CIO: Works well for toddlers who get more upset with check-ins.
- Chair method: Generally not recommended at 18 months — most toddlers won't ignore a parent sitting in the room.
- Behavioral additions: Consider a "sleep rules" chart with pictures (we lie down, we close our eyes, we stay in bed).
Toddler-Specific Challenges
- Bedtime stalling reaches new heights: more water, another story, need to potty, scared of shadows.
- Set a clear boundary: "After our routine, I will check on you one time. Then it's sleep time."
- Molars coming in can cause genuine discomfort. If pain is the issue, address it with pain relief, then stay consistent.
- Some toddlers start climbing out of the crib. If this happens regularly, it's time to transition to a toddler bed for safety.
If you're transitioning to a toddler bed, complete the bed transition first (1-2 weeks), then address sleep training separately. Changing too many things at once sets everyone up for failure.
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