At night, a house makes small sounds that nobody notices in the daytime. A furnace clicks on, a pipe knocks, an alarm chirps once and then goes still. When someone in the home has memory changes, a sound like that can become a reason to get up, to worry, or to try to fix something alone. A short written call list can take that weight off the person living there.

Local option: New Plan Care gives families in the St. Louis area in-home help so a parent can stay home: companionship, help with bathing and dressing, meals, and overnight care. Call (314) 405-0887.

This guide is about the house, not about health. Health questions go to the family's doctor. Repairs go to licensed people you choose yourself. The job here is simpler: decide in advance who answers each kind of call, and make sure that answer is written down where it can be found in the dark.

Start with the systems that fail quietly

List the systems that can stop working without much warning: the furnace or air conditioner, the water heater, the gas line, the electrical panel, the smoke and carbon monoxide alarms, the locks on the front and back doors, the phone line, and the internet router that runs any video doorbell. Walk the house once and write down where each one lives.

Write one card per system

On an index card or a single page, record the system, its location, the name of the person who owns it, that person's phone number, the company that services it, and the account number that goes with it. Keep one card per system. Put the cards together in a folder, and keep the folder in the same drawer every time. A simple card that is easy to find at night is worth more than a complete card that no one can locate.

Write down what the person living there should not do

This part is easy to skip and important to write down. The person living in the house should not climb a ladder to reach an alarm, reset a breaker that has tripped, relight a pilot light, or open a gas cabinet. Write these rules plainly, with the word call next to each one. A person who is worried at night often wants to help, and a clear rule keeps that wish from turning into a fall or a fire.

Mark the gas and water shutoffs

Find the gas shutoff and the main water shutoff, and mark each one with bright tape or a label. Show them to the family and to any helper who will be in the home. Ask the owner of the house to confirm the right way to turn each one off. Do not guess, and do not let the notebook say probably.

Who gets the call at night

Name two people for every system: a first person and a second person. The first should live nearby and be able to reach the house quickly. The second should be someone who can make decisions by phone. Write down what each person should be told first: the address, the system that is failing, what the caller can see or hear, and whether anyone is in danger. Ask the first person to confirm by text that they have the card.

When a helper is in the home

If a hired or in-home non-medical caregiver is in the house, give them a copy of the call list and the do-not list. They can help the family by noticing a chirp, a smell, or a cold room and making the call, but they should not repair or reset anything on their own. Ask them to tell the family the moment something seems off, so the owner can decide what happens next. To see how this fits into an ordinary day, read A Day of Support at Home, which walks through who does what from morning to night.

Refresh the list when things change

Check the cards whenever a phone number changes, a service company is replaced, or someone moves into or out of the home. Keep the old card for a while in case it is needed. A list that is current is the difference between a call that gets answered and a call that goes to a number no one uses anymore.

A quiet house is not a house without sound. It is a house where each sound has a name next to it and a person who knows whom to call. That is what keeps an ordinary night ordinary.