Most night falls on the way to the bathroom happen in a dark hall, not in a dramatic way. Dad knows where the bed is and where the toilet is, and he reaches for a switch that sits on the far wall. You can fix the path without settling whether he needs help. The decision is how the light gets there: you plug it in, you stick it on, or you wire it in. Each choice has a different owner and a different amount of work.
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.
Three ways to light the path
A plug-in motion light at a low outlet is the simplest choice. It turns on when the path goes dark and turns off on its own. Check the outlet height against the spot where his feet will land, check the cord route so nobody trips over it, and check whether that outlet sits on a switch someone else might turn off. No tools are needed. The weak point is the outlet position. If the nearest outlet is by the dresser, the light falls in the wrong place.
Battery stick-on lights look like the easy fix, and they are right for a hallway with no usable outlet. Read the battery type and the replacement interval on the package, then decide now who changes the batteries. A light that dies quietly leaves the path looking lit until the moment it isn't. Test the adhesive on the actual wall surface first, because painted drywall and textured paint hold differently.
A hardwired motion fixture or a sensor switch is the permanent choice. It needs the power off at the breaker, an existing box or a new one, wire run to the switch point, and connections a licensed electrician should make. In many places a new fixture or a new circuit needs a permit and an inspection, so ask before any work starts.
What to check before anyone touches a wire
Walk the route from his bed to the bathroom with the room dark and your phone flashlight off. Stop at every point where he would reach for something: the bed edge, the bedroom door, the hall corner, the bathroom threshold, the toilet. Mark each spot with painter's tape. Count the existing switches. If the only switch is at the bathroom end, you need a light he can switch on from the bed side too. That is a three-way setup, and it is electrician work.
Check the floor as well. A good light shows the rug edge, the threshold, and any step. A bad light shines into his eyes from the doorway. Angle matters more than brightness, so test the light from the position where he will actually stand.
Ask the electrician these questions
Ask whether the job needs a permit where you live and who pulls it. Ask whether they will reuse the existing switch or replace it, and what they will do with the wall box if it has to move. Ask what they will do with the wire behind the drywall if the route changes. Ask for the model of the sensor fixture or switch, whether it has a manual override, and what the warranty covers. Get the answers in writing on the estimate, not on the phone.
Decide who owns the light
Plug-in and battery lights are a weekend job for most people, and the upkeep belongs to whoever holds the battery or the cord. Hardwired work goes to a licensed electrician unless you are one yourself. Many families do a split: plug-in and battery lights now, and a wired switch at the bed side once the route is proven. Write the battery schedule on the same calendar as the electrician's name, so nobody has to remember either one.
Dad does not have to agree that he needs a light. He only has to walk the path, and the light does the rest. For local names and where to begin searching, start with the Local Help in St. Louis page, then read the permit and inspection lines on every estimate before you sign.
The next move
Tonight, after dark, walk his path with the lights off and put a piece of tape at each reach point. Next to each tape mark, write one word: outlet, battery, or wired. Make that call this week on the single spot that matters most, which is usually the stretch between the bed and the bathroom door.