What you're seeing is usually completely normal

Short answer: In most cases, sleep hiccups are completely normal — but there are a few signs worth watching for.

Here's the 4 most common reasons

and when to call your vet.

#1 - REM sleep can Trigger Muscle Spasms

Just like humans, dogs cycle through REM sleep, the deepest, dream-filled stage.

During REM, the brain is highly active. You'll often see:

Twitching paws or "paddling" legs
Ear and whisker movement
Soft whimpers or barks
Diaphragm spasms (aka hiccups)

Verdict: Totally normal. They're probably chasing something fun.

#2 - They're a Puppy

Puppies hiccup a lot more than adult dogs — sometimes several times a day.

Their diaphragms are still developing, and their excitement levels (and eating speed) don't help.

Verdict: Completely normal. Most dogs grow out of it by 12 months.

View Recommended Puppy Beds

#3 - They Ate or Drank Too Quickly Before Bed

A big meal or fast water glug right before sleep means your dog swallowed air along with it.

That trapped air irritates the diaphragm — and when they lie down to sleep, it escapes as hiccups.

Verdict: Harmless. Try feeding 30–60 minutes before bedtime.

#4 - Their Bed Isn't Supporting Them Properly

This is the one most owners miss.

Dogs that can't get comfortable shift position constantly through the night. That restless tossing, combined with shallow breathing on hard or flat surfaces, can trigger diaphragm spasms and hiccupping fits.

You'll often see it alongside:

Frequent repositioning overnight
Sleeping in odd, contorted shapes
Waking up stiff

A properly supportive bed solves this by letting your dog settle into deep, uninterrupted REM — which is when they should be hiccupping peacefully, not restlessly.

See the Vet Recommended Deep Sleep Bed

🚨 When to Call Your Vet

Most sleep hiccups are nothing to worry about. But book a check-up if you notice:

Hiccup episodes lasting longer than an hour
Difficulty breathing, coughing, or wheezing
Constant pacing or restlessness overnight
Hiccups paired with loss of appetite or lethargy

Older dogs, larger breeds, and dogs with joint discomfort are especially prone to interrupted sleep — and a vet can rule out anything serious in a 5-minute visit.