Sleep Training Methods Compared: Find What Works for Your Family
Every baby is different, and there's no single "right" method. We break down the 5 most popular approaches — how they work, what the research says, and which is best for your parenting style.
Quick Comparison
When Is Your Baby Ready?
Most pediatricians recommend waiting until 4–6 months before starting formal sleep training. Before this age, babies often genuinely need nighttime feeds and may not have the neurological maturity to self-soothe.
| Age | Sleep Needs | Night Feeds | Ready for Training? |
|---|---|---|---|
| 0–3 months | 14–17 hours total | 2–4 feeds/night | ❌ Too early |
| 4–6 months | 12–16 hours total | 0–2 feeds/night | ✅ Can begin gentle methods |
| 6–12 months | 12–15 hours total | 0–1 feed/night | ✅ Ideal window |
| 12–18 months | 11–14 hours total | 0 feeds/night | ✅ Still effective |
The 5 Methods Explained
1. Cry It Out (Extinction)
Also known as: Full Extinction, Weissbluth MethodPlace your baby in the crib awake, say goodnight, and don't return until morning (or the next scheduled feed). The idea is that babies learn to self-soothe without parental intervention.
How It Works
- Complete bedtime routine
- Put baby down awake
- Leave the room
- Don't return until morning
What Research Says
A 2016 study in Pediatrics found no long-term emotional or behavioral differences between babies who were sleep-trained with CIO and those who weren't. Cortisol levels normalized within days.
Pros
- Fastest method (3–5 nights)
- Clear and simple to follow
- Highly effective long-term
Cons
- Emotionally very difficult for parents
- Extended crying in first 1–2 nights
- Not suitable under 6 months
2. Ferber Method (Graduated Extinction)
Also known as: Check-and-Console, Timed ChecksSimilar to CIO but with periodic check-ins at increasing intervals. You briefly reassure the baby but don't pick them up, gradually extending the time between visits.
Check-In Schedule
- Night 1: 3 min, 5 min, 10 min, then 10 min
- Night 2: 5 min, 10 min, 12 min, then 12 min
- Night 3: 10 min, 12 min, 15 min, then 15 min
- Night 4+: 12 min, 15 min, 20 min, then 20 min
Check-In Rules
Keep visits brief (1–2 min). Speak softly, pat gently, but don't pick up. The goal is reassurance, not soothing to sleep. Leave while baby is still awake.
Pros
- Easier on parents than full CIO
- Structured and predictable
- Well-researched approach
Cons
- Check-ins can escalate crying for some babies
- Takes longer than CIO
- Requires consistency
3. Chair Method (Sleep Lady Shuffle)
Also known as: Camping Out, Gradual RetreatSit in a chair next to the crib as baby falls asleep. Every 2–3 nights, move the chair farther from the crib until you're out of the room entirely.
Pros
- Your presence is reassuring
- Gradual transition
- Good for anxious parents
Cons
- Can take 2+ weeks
- Baby may protest when chair moves
- Requires patience and consistency