Safe alternative for bath mats?

The bathroom that I used for my Husband has a roll in shower. The tile in the shower is the entire bathroom floor. When he was walking he would use his walker into the bathroom and then I had another walker that he could use IN the shower. (I could not get him to use the grab bars) When the shower was done he just stepped out of the shower area and I would dry him off. the tiles are all a non slip tile.
When I have the main bathroom redone I will have non slip tiles put on the bathroom floor just like the Handicap bathroom.
For IN the shower there are grippy tread strips that you can put right down on the shower floor.
Technically you could put them down in front of the shower door on the bathroom floor as well. They will be flush with the floor, will not curl, will not move so they are much safer than a mat or a rug.
You will have to mop up any water that gets on the floor.
Maybe putting a shower chair outside the shower so he can sit down to begin drying off.
Help and supervision becomes very important.

Just Google "Shower Sandals!" These can be worn right into the shower and a second pair can await her when she steps out of the shower.

If you mean in the tub/shower then I used 3M safety strips

https://www.3m.com/3M/en_US/p/d/b00008061/

We had a shower put in powder room when Mom was with us. It had the grab bars, easy excess. Mom had an aide come in to bath her. The aide said to me I needed to get a mat for inside the shower. I said "No, the floor is textured so you won't slide." A matt would not be able to grip the floor.

Alwayshelps,

It’s so easy for anyone to slip in the shower. We accidentally drop a bar of soap. Body wash, shampoo and conditioner spills make the floor slippery too. Or just loosing one’s balance can cause a fall.

We installed interlocking rubber grates in our walk in shower. They are called Designer grip-loc tiles. They are fabulous! They come in 12 inch square pieces. You can cut them to make a custom fit for any size shower. You will not slip on this flooring!

We ordered them from Amazon. The site is rubberflooringinc.com.

For IN the shower, water shoes provide the best grip-ability.

my husband uses this one:
https://www.bedbathandbeyond.com/store/product/mdesign-loofah-cushioned-suction-bath-mat-for-shower-stall-bathtub/7067374. and it's machine washable.

As others mentioned, there are adhesive strips that are textured that you can apply yourself. Honestly, I'm bothered when things aren't perfectly aligned so the strips were not an option for me -- I was not about to measure to get them laid perfectly, lol. Turns out they also come in circles, maybe about 1.5 inches in diameter, that you can place randomly. We've had them down for about two years now and have had no problems with them.

Yes I agree I’m not disabled and find them a hazard too. The ones with the suction cups are good inside the shower or tub. Once out of the shower slippers are good everywhere if you have hard surfaces.

I got a really long floor carpet runner and cut it to fit around toilet. We had very narrow bathroom so length was the go-to size. It was just like a piece of carpet so there was no curl or movement when stepping onto it from the hallway. You can hang them over something, such as a rail or fence outside to hose them down for cleaning purposes. And replace if you can't get a stain out. Worked quite well and kept my parent from having to walk on the cold bathroom floor.

For inside the bath, get the real long ones that cover all the bottom of the tub or shower floor. That way there's no lip to trip on.