Your mother says she falls on the way to the bathroom. That tells you the route. It does not tell you where the trouble begins.
The useful question is smaller: At which stop does she first become unsteady, confused, hurried or unable to manage what comes next?
Do not test this at 3am. At 3am, help her through the immediate situation and follow the first steps in the first ten minutes after a fall. Then write down what happened while the sequence is still clear.
On a calm day, walk the same route with her. Start with the bed and end with the toilet. Do not coach her into performing better. Stay close enough to help, and watch what she normally reaches for, hesitates over or tries to do too quickly.
Stop one: the bed
Ask her to show you how she gets ready to stand. Watch whether she can move the covers, find the edge and place both feet where she wants them.
Check what is within reach before she moves. Glasses, footwear, walking aid, lamp switch and phone should not require leaning, twisting or taking an unsupported step.
Notice whether the mattress edge gives her a firm place to sit. Ask, "Do you ever slide forward here?" and "Do your feet reach the floor before you stand?" Do not change the bed height or add equipment based only on your inspection. Put the concern on the list for her physician or the clinician evaluating her movement at home.
Stop two: standing up
Watch the first few seconds after she rises. Does she stand still before moving, or does she begin walking immediately? Does she pull on furniture? Does she abandon her usual walking aid because it is parked out of reach?
Ask what she feels at that moment. Record her own words, especially if she describes dizziness, weakness, pain, urgency or uncertainty. Those are clinical details for her physician, not problems you need to diagnose yourself. The site's source desk shows the public guidance used for questions that need clinical follow-up.
Stop three: the first steps
Look at the floor beside the bed and along the first few feet. Check for blankets, cords, rugs, baskets, pet items and furniture that narrow the path.
Then watch where she looks. Can she see the next clear place to put her foot? Does she reach for a dresser, wall or doorframe? A handprint on furniture, a shifted rug or an object repeatedly knocked aside can help you identify the route she actually takes.
If she uses a cane or walker, ask her to begin with it where she normally keeps it. If it cannot be reached from the bed, write that down. Questions about whether the device fits her or is being used correctly belong with her physician, therapist or other clinician.
Stop four: the bedroom doorway
Stand where the path narrows. Check whether the door, furniture or walking aid competes for the same space. Watch whether she has to turn sharply, move sideways or reach around the door.
Ask, "What do you hold here at night?" Her answer may reveal support that is not obvious in daylight. If she says the wall, the knob or a piece of furniture, record the exact object and which hand she uses.
Stop five: the bathroom entrance
Check the threshold, flooring change and door swing. Look for bathmats, damp areas and anything stored behind the door. Watch whether she leaves her walking aid outside because the opening or room feels too tight.
Ask whether urgency changes what she does. If she says she rushes, cannot wait or makes several trips each night, write down her words and bring them to her physician. Medication, sleep and bathroom symptoms are clinical questions. Do not try to solve them by changing a dose or restricting fluids on your own.
Stop six: the toilet
Watch the final approach. Where does she place her hands? Does she turn before she is close enough? Does clothing management leave her without support? Can she sit under control and stand again using her usual method?
Also test the return route. The weak stop may appear after toileting, when she is rearranging clothing, leaving the bathroom or approaching the bed from the other direction.
How to tell you found the problem
You are looking for the first repeatable break in the sequence. It may be the moment she cannot reach her walker, the doorway where she grabs the frame, the bathroom entrance where she leaves the walker behind or the turn before she sits.
Do not call every imperfection the problem. Mark a stop when you see one of these signs: she needs another person, grabs an object not meant for support, changes her normal method, cannot explain what happens next or reports a symptom that needs clinical review.
If several stops are weak, circle the earliest one. Trouble there can shape everything that follows. Give the complete list to her physician or home evaluator, but start your household discussion with that first weak stop.
What to do at 3am
If she falls, handle the fall first. Do not turn the moment into a walking test or an argument about what she should have used. Follow the immediate sequence in the first ten minutes guide, and use the St. Louis local help page when you need the right local doorway.
Once she is settled, write down:
1. Where she started.
2. Where she was found.
3. Which direction she was moving.
4. What she remembers reaching for.
5. Whether her glasses, footwear and walking aid were in use.
6. What she felt before the fall, in her own words.
7. Which of the six stops came just before it.
Add what you observed without interpreting it. Write "walker beside the bathroom door," not "refused walker." Write "said the room moved," not "lost balance." Write "wet floor near sink," not "slipped," unless someone actually saw the slip.
Bring that short record to the appointment. Ask the physician which symptoms need evaluation, whether medications or bathroom symptoms need review, and whether a home visit by an appropriate clinician would help assess the route. You can use the reading path to decide which question to take next.
You do not need to solve the whole house before morning. You need to know where the trip first stops working. That gives your mother, her physician and anyone assessing the home one clear place to begin.