Confusion, or restlessness at night

What this tends to look like

• Standing and staring at a wall, or getting stuck behind furniture and not backing out
• Going to the hinge side of a door, or to a door that has not been used for years
• Awake, pacing or vocal at night, then sleeping heavily through the day
• Less interested in greeting people, or seeming not to recognize a familiar visitor
• Sometimes toileting indoors having been reliable for years
• Repetitive behavior: circling, licking, or walking the same route over and over

What is usually going on

Canine cognitive dysfunction and its feline equivalent are real, common, and progressive, and they are also under-recognized because the signs are easy to file under old age. The reversal of the sleep cycle is often the clearest single indicator: an animal that paces or calls at night and sleeps heavily by day is showing a genuine change rather than being awkward.

Before accepting that diagnosis, several things must be excluded, because they produce a very similar picture and are more treatable. Pain causes night restlessness and reluctance to settle. In cats, hyperthyroidism and high blood pressure both cause night vocalizing, and both are readily found on testing. Failing sight makes an animal look lost. Kidney and liver disease affect mental state. Deafness makes them appear unresponsive and confused. A senior blood panel, a blood pressure reading and an examination sort most of this out, and it is genuinely worth doing before you settle for a management-only approach.

Where the plan does turn to management, the environmental part carries most of the weight. Predictable routine, a consistent layout with clear routes, blocked hazards, night lights, and mental stimulation in the form of short training sessions and food puzzles all help, and the evidence for keeping an aging brain engaged is reasonably good. There are also prescription options and specific diets with genuine supporting data, which is a conversation worth having early rather than late. Among supplements, omega-3 has the more plausible case; milk thistle is a liver support product and it is not a cognitive treatment, whatever the shelf next to it implies.

What people commonly use

Educational information only — not veterinary advice. Check with your vet before starting anything new.

Where to find them

Sold by third-party retailers. We may earn a commission at no extra cost to you.

What you can do at home

• Get a senior workup first: bloods, urine, blood pressure, and a thyroid test in a cat. Several treatable conditions look exactly like this
• Keep the layout and the routine rigidly consistent. Do not rearrange furniture, and keep walk and meal times fixed
• Night lights on the routes they use, and block stairs and any drop they could fall down
• Short daily training or food-puzzle sessions. Mental engagement is one of the better-supported interventions
• Get natural light and gentle activity into the daytime to help re-anchor the sleep cycle
• Ask about prescription options and about the specific senior diets with clinical data behind them

What progress should look like

How long to give this before you conclude it is not working.

• This monthThe senior workup. This is the step that separates treatable illness from cognitive change.
• Two to four weeksEnvironmental consistency, night lights and daytime activity often improve night restlessness on this clock.
• Four to eight weeksDiet and supplement effects, if any, would show over this window. Be prepared to conclude nothing changed.
• Every three to six monthsReassess. This is a progressive condition and the plan needs to keep pace with it.

When to stop and call your vet

• Seizures, collapse, sudden circling, or a head tilt that came on quickly
• Increased thirst, weight loss, or a change in appetite
• Night vocalizing in a cat, which needs a thyroid test and a blood pressure reading
• Distress severe enough that they cannot rest at all, which needs medication rather than management