My Cockapoo Puppy Was Sleeping Through and Now They're Not — What's Actually Happening
Posted on 14th October 2026
You did everything right. The first few weeks were hard, but you got there — your puppy was settling, sleeping through, and you finally felt like you knew what you were doing. Then, seemingly out of nowhere, the night wakings started again. 3am. 4am. Sometimes earlier.
Before you assume you've undone all your hard work, or that something is wrong with your puppy, here's what's actually happening: sleep regression is a normal, predictable part of puppy development. It isn't a sign you've failed. It isn't your puppy being difficult. And it does pass — if you handle it right.
This post covers why sleep regression happens, when to expect it, and — most importantly — the one thing that makes the difference between regression that passes quickly and regression that turns into a long-term habit.
Why Does Puppy Sleep Regression Happen?
Cockapoo puppies go through several developmental phases in the first six months, and sleep is one of the first things that reflects those changes. There are a few common triggers:
- A developmental leap — their brain is doing a lot of growing. During periods of rapid cognitive development, sleep becomes lighter and more disrupted.
- Teething — sore gums make sleep uncomfortable, and discomfort that wasn't there last week can wake a puppy who was previously settled.
- A change in routine — a new environment, visitors, a holiday, a change in feeding time. Even positive changes can disrupt an established sleep rhythm.
- Growing bladder capacity — as puppies grow, their overnight toilet schedule sometimes needs adjusting. Counterintuitively, a puppy whose bladder is changing can start waking more, not less, until the schedule catches up.
The important thing to know is that these regressions are temporary — and they are part of normal development, not evidence that your puppy's sleep training has fallen apart.
When Does Puppy Sleep Regression Usually Happen?
There isn't one single regression — there are several, and most owners only know about the first one. The most common windows are:
- Around 8–10 weeks — the transition to a new home is itself a form of regression trigger. Everything is new and unsettling.
- Around 4 months — a significant developmental leap that affects sleep quality in many puppies.
- Around 6 months — adolescence begins, and with it comes a whole new layer of brain development that can disrupt settled routines.
If you're reading this and your puppy has started waking again, the chances are you're in one of these windows — and what looks like regression is actually development.
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What's the Biggest Mistake Owners Make During a Sleep Regression?
Trying everything at once.
When nights start going wrong again, the instinct is to fix it fast. So owners switch the crate position, change the bedtime, try a new settling routine, add a white noise machine, remove the white noise machine, try letting them sleep in the bed "just this once." Within a week, nothing is consistent, the puppy has no idea what to expect, and the regression has bedded in.
The single most important thing you can do during a sleep regression is stay consistent with the plan that was already working. One plan. Seen out. Not five plans in five days.
Consistency is what tells your puppy's nervous system that the world is predictable and safe. Changing everything in response to regression removes that predictability and makes the regression worse, not better.
What Should You Actually Do During a Sleep Regression?
Keep the same routine. Same bedtime, same steps in the same order, same response to night waking. Give it at least two weeks before you consider changing anything — regressions are rarely longer than this when the foundations are already in place.
If your puppy is waking to toilet, respond calmly and quietly — no talking, no eye contact, straight back to the crate. You're not teaching them to wake for company. You're meeting a physical need and giving nothing else.
If your puppy is waking and doesn't need to toilet, the response is the same: calm, quiet, minimal. You are not rewarding the waking by making it interesting.
And if things are genuinely getting worse over two weeks rather than stabilising — more waking, not less; escalating distress, not settling — that's the moment to get some help, not the moment to try a new routine you found online at midnight.
Why Cockapoos Can Be Particularly Affected by Sleep Regression
And if things are genuinely getting worse over two weeks rather than stabilising — more waking, not less; escalating distress, not settling — that's the moment to get some help, not the moment to try a new routine you found online at midnight.
Cockapoos are bred from two seriously people-oriented breeds — Cocker Spaniels and Poodles — which means they are more alert to change, more tuned in to what's happening around them, and more sensitive to disruption than many other breeds.
A noise that wouldn't wake another breed can pull a Cockapoo out of light sleep. A change in routine that another puppy would absorb without issue can tip a Cockapoo into unsettled nights for a week. That sensitivity is part of what makes them such brilliant companions — and it's also why the foundations of sleep matter so much from the beginning.
The calmer and more predictable the sleep environment, the more resilient a Cockapoo puppy is when developmental changes arrive.
Supporting Blogs:
The Calm Cockapoo Evening Routine: A Step-by-Step Guide for Settled Nights
Resources:
Stop the Evening Chaos: Helping Your Cockapoo Puppy Settle, Focus, and Feel Safe
Freebies:
The Cockapoo Puppy Sleep Training Guide
Watch on YouTube
5 signs your Cockapoo puppy is overtired
You Haven't Undone Anything
Sleep regression feels like failure because it arrives just when you thought you had it cracked. You haven't failed. Your puppy hasn't gone backwards. They've gone forwards — into a new developmental phase that temporarily disrupts sleep while their brain catches up with their body.
Your job right now is not to fix it. It's to hold steady.
Same routine. Same response. Same calm. Give it two weeks. Most regressions resolve on their own when the foundations are already there.
If you haven't got those foundations in place yet, or you're not sure whether you do, my free sleep guide — Settle. Sleep. Repeat. — gives you the full method: the settling routine, the night toilet protocol, and exactly what to do when it doesn't go to plan. It's free.
— Clair
Founder, Cockapoo52