Restlessness in dying pets — what it means, what helps

The short answer

A pet who cannot settle is communicating something. The most common causes, in order: under-treated pain, position-related discomfort (pressure points, joint stiffness), sundowning / cognitive dysfunction, metabolic changes near the end of life, and environmental factors (heat, noise, lighting). Each has a different response.

Why it happens

Five mechanisms account for almost all end-of-life restlessness:

Pain. Inadequate analgesia. The most common reversible cause. Multimodal pain control (NSAID + gabapentin + opioid) often resolves it.
Pressure on a body region. Lying on a hard surface, lying for too long in one position, joint stiffness on the contact side. Repositioning helps; soft bedding helps more.
Sundowning. Cognitive dysfunction in senior dogs, particularly evident in the evening. See when to euthanise a dog with dementia.
Metabolic. Rising blood urea, electrolyte shifts, hepatic encephalopathy. Common in renal failure and liver failure cases. Responds to sedation rather than analgesia.
Anxiety. Sensing the change in the household, the family's distress, the routine being different.

Two phases of restlessness

Most end-of-life restlessness comes in two distinct phases:

The "settling" phase, days before death. The pet seems unable to find a comfortable spot. Repositions every 10–30 minutes. Often associated with mild pain or cognitive changes. Responds well to environmental adjustment, soft bedding, and good pain control.
The "terminal" phase, hours before death. Brief episodes of paddling or repositioning that do not appear distressed but look disturbing. Usually reflex-driven, not consciously experienced. Does not need intervention.

What helps

Soft, dry, body-temperature bedding. Memory foam mat or thick folded duvet. Pressure points are the single most fixable cause.
Repositioning every 2–3 hours. Especially for animals who cannot move themselves. Reduces pressure-point pain dramatically.
Better pain control. If your pet is on an NSAID alone, ask your vet about adding gabapentin. Most end-stage animals need at least two analgesics.
Sedation if appropriate. Trazodone, benzodiazepines, or low-dose acepromazine — vet-prescribed. For metabolic-driven restlessness, sedation is the right tool.
Quiet, dim, predictable environment. Lower the lights, reduce noise, avoid visitors. Many pets at end of life are sensory-overwhelmed.
Family presence. A familiar voice, a familiar hand resting nearby. Continuous presence reduces anxiety-driven restlessness.

When restlessness is distress that needs intervention

Call your vet or an emergency clinic when restlessness is accompanied by:

Continuous vocalisation (whimpering, yelping).
Open-mouth panting at rest in a cool room.
Wide, glassy eyes; rapid blinking.
Stiff body posture or rigid limbs.
Inability to be calmed by any home measure for more than an hour.

These are signs that medical intervention — adjusted analgesia or sedation — would meaningfully improve welfare. The dying process should not be an extended struggle.

Common questions

My pet keeps changing position every few minutes — is that pain?

Possibly. Position-cycling is a common behavioural sign that the current position is uncomfortable. In an end-stage animal it can also be the body searching for a relief that no position can provide. If position-changing is accompanied by vocalisation, panting, or other distress markers, treat it as pain and call your vet.

My dog is pacing at night despite being terminally ill. What should I do?

Nighttime pacing in senior dogs has multiple causes — sundowning (cognitive dysfunction), arthritis flare in the cooling evening, vision changes, and pain. Even in end-stage disease, treating the reversible component (better pain control, lighting, joint support) often calms the pacing.

Is restlessness always a sign of pain?

Not always. In the last 24-48 hours of life, some restlessness reflects metabolic changes (rising urea, electrolyte shifts) rather than acute pain. The distinction matters for treatment: pain-driven restlessness responds to analgesics; metabolic restlessness responds to sedation but not painkillers.

My vet recommended a sedative. Is that the right call?

Often yes. For end-of-life animals where pain is controlled but restlessness persists, a benzodiazepine (midazolam) or trazodone often gives the animal a settled few hours. Sedation at this stage is comfort care, not over-medication.

Editorial reference, not veterinary advice. — Dr. NRS, last reviewed 28 April 2026.