Is the 8 month sleep regression the same for every baby?

No. Timing varies (some babies hit it at 7 months, some at 9), and not every baby has a rough one, some transition through it barely noticed.

Should I drop the 3rd nap right when the regression starts?

Not necessarily immediately, but if bedtime is consistently late or resisted, it's usually the sign the nap schedule needs to move, not just the regression passing.

Does teething make the 8 month regression worse?

It can overlap, since teething and this developmental window often coincide, but they're different causes needing different responses.

8 month sleep regression: what's actually going on

The 8-month sleep regression usually isn't one thing, it's a nap transition (often 3 naps down to 2) colliding with a developmental leap (crawling, pulling up, separation anxiety) at the same time. Most families see it ease within 2-6 weeks, not because the baby "grows out of it" passively, but because the nap schedule catches up with what they actually need.

Why it hits so many babies at once

Around 8 months, wake windows stretch faster than most nap schedules keep up with. A baby still on 3 naps can end up overtired by the third one, which paradoxically makes night sleep worse, not better. At the same time, new gross motor skills (crawling, pulling to stand) and a spike in separation anxiety both peak in this window, so the timing lines up even though the causes are different.

The nap piece is usually the fastest fix

Watch total wake time between the 2nd nap ending and bedtime, not just nap length
Most babies are ready to drop to 2 naps somewhere between 7-9 months, signaled by fighting the 3rd nap or bedtime creeping later
A too-early 3rd nap (or none at all) both backfire the same way: overtiredness by bedtime

What to do at night, practically

Keep the bedtime routine identical even on hard nights, consistency is doing more work than it feels like
Give a few minutes before rushing in, motor-skill practice (like pulling up in the cot) sometimes happens IN their sleep, not just awake
If separation anxiety is the driver, short, calm, boring check-ins work better than a long resettle

How long it actually lasts

For most families, 2-6 weeks, with the nap-schedule adjustment being the thing that actually resolves it, not time alone. If it's dragging past 6-8 weeks with no improvement at all, that's worth a closer look rather than continuing to wait it out.

For the full nap-transition and night plan

Sleep With Less Panic (6-12M) walks through the exact nap transition timeline, wake windows week by week, and how to tell a regression from something that needs a different approach.

Sleep With Less Panic (6-12M) →