How long did sleep training actually take you? (4-month sleep regression)

Two kids, both Ferber-trained, both at ~4.5 months. Honest timelines:

**Kid 1:** Night 1 — 47 min crying. Night 2 — 22 min. Night 3 — 8 min. Night 4 — 0 cry, slept 7 hours. By night 7, sleeping 11 hours. Textbook.

**Kid 2:** Night 1 — 52 min. Night 2 — 38 min. Night 3 — 41 min (regression). Night 4 — 19 min. Night 5 — 12 min. Night 6 — 5 min, slept 6 hours. Night 7+ — sleeping consistently 10–11 hours.

Both ended up at the same destination, kid 2 just took longer. **Stay the course through night 7** — that's the data point I wish I'd had. The night-3 regression is real and almost everyone hits it. Don't bail on night 3.

Ferber didn't work for our daughter. We pivoted to **chair method** (gradual retreat) and it took ~14 nights but was much less stressful for both of us. Same end result — sleeping through by 5.5 months.

If Ferber feels wrong for your specific kid, switching methods is fine. The "consistency" rule is about consistency *within* a method, not refusing to ever change methods.

4-month regression and sleep training **at the same time** is brutal but it's also the right window. Sleep cycles are consolidating into adult-like 90-min cycles right then, which is why everything goes haywire — and why it's actually a good time to teach independent sleep.

Our baby took 9 nights to crack it. Crying duration: 35 → 28 → 30 → 22 → 18 → 12 → 6 → 3 → 0. The improvement isn't always linear but the trend is what matters.

Brutal honesty: sleep training was the single best parenting decision we made. By month 6 our baby was on 12 hours of nighttime sleep + 2 solid naps, we got our marriage back, and the baby was visibly *happier* during the day. Was it hard for 5 nights? Yes. Was it worth it for the next 3+ years of healthy sleep habits? Absolutely.

The people who say sleep training "didn't work" almost always bailed before night 7 or were inconsistent (e.g., one parent caves, the other doesn't). Pick your method, agree with your spouse, and commit for at least 7 nights before evaluating.

Gentler approach that worked for us: **pick-up-put-down.** Took 3 weeks but no extended crying. Baby was sleeping through by month 6. Not for everyone (it requires patience and Mom/Dad rotation) but it's a legit option if Ferber feels too intense.

Key: whatever method, do it for at least 14 nights before declaring it failed.

OP — at night 4 with 6→3 wake reduction, you are *winning*. Most pediatric sleep specialists consider that on-track for night 4 of Ferber. The mistake people make is expecting the "click" to happen at night 3. For most babies it's night 5–7.

One specific thing that helped us: we noticed our baby's last nap of the day was creeping too close to bedtime. Pulling that nap earlier (and ending it by 4pm) made bedtime go from 25 min of fussing to 5 min within two days.

Pediatric sleep consultant here. Stats from my last 200 clients:

- 62% of Ferber babies sleep through by night 7

- 81% by night 14

- 94% by night 21

- The remaining 6% almost always have a medical/feeding issue worth investigating

The 4-month regression *adds* 2–4 nights to most timelines but doesn't prevent success. You're on schedule.