Any good cushions to sit on in a recliner to prevent pressure sores to coccyx?

A pillow will help but please encourage her to turn and reposition often, like every 2 hrs to further decrease the chance of pressure ulcer formation/progression.
Pressure ulcer progression to deep tissue can very detrimental for many reasons & require frequent & effective wound care, especially in the senior population. 

We purchased a second alternating pressure mattress pad, one is one her bed. We placed it lengthwise, head to foot on Mom's recliner and covered it with a fitted twin sheet. She, too, is a small, frail woman. She has not been mobile in over two years and has not had any pressure ulcers (bed sores) at all. I do still do some repositioning every two hours, but it can be as simple as changing the angle of the recliner. My mom's is electric so it is easy to do.

We did try a variety of cushions for her wheelchair, but if she sits very long (over about 30 minutes) she will start to get red, even with the expensive cushions. She just doesn't have any natural padding left. I am sold on using the alternating pressure mattress pad.

In addition to padding and repositioning, it is important to watch her nutrition too. One of my daughters is a nutritionist and has us feed Mom high protein and healthy fats. This is essential to keeping the skin healthy. Also be sure to hydrate the skin with lotions and ointments. (Keeping it clean is important as well ;-)

Roho is the brand that most facilities recommmend. Get her doc to write a script for it and get it through Medicare.

The coccyx can be a very difficult area to treat and prevent pressure sores....i know. The skin is thin and is more prone to injuries from pressure and shearing/tearing. I was dealing with recurring coccyx injuries. Using a home recliner or lift chair can be very beneficial in the recline position. This changes how a person's weight is distributed from straight down to lying back, but it does not change the fact that repositioning is still essential. The less mobile a person is, the more difficult it is to reposition them especially on a consistent basis. I tried a bunch of cushions without any success. Then I got a recommendation from a caregiver that cares for the elderly and for several people with ALS. She recommended the 9700-GRLB-4401 alternating pressure recliner overlay with a pump made specifically for home recliners and lift chairs. It's only sold by comfortsbest.com. (If your mom has ALS, Mac Angels may help you pay for the cushion.) The cushion has a pump and fills air tubes that relieve the pressure by changing air pressures every 10 minutes or so. The air cushion covers the seat, back and heels and I can adjust it to make her comfortable. It is meant for people who spend a lot of time or sleep in their recliner. She had stage 2/3 sores and is healed. I had to pay for this myself because medicare will not pay for a recliner cushion. I don't have enough characters in this message to explain what I went through with medicare but it opened my eyes...medicare does not believe in prevention.... she needed a stage 3 bed sore to get any sort of alternating air cushion. So you have to have the sore to prevent the sore....makes sense to someone i'm sure. The cushion help me, hope this can help you.

Repositioning every 2 hours (min) is important. Otherwise, an alternating pressure cushion is important, but expensive. My Dad like the 2" thick memory foam cushions (amazon).

Thanks for all the good ideas. I understand medicare will not help to pay for these items unless the patient already has a pressure sore. I certainly do not want that. I have found if her bottom starts to get a little reddened, Desitin works well to heal the reddness, has zinc in it. I wonder about pallative care or hospice provides, although my Dad does not want to hear those works and I also understand that.
Thanks to all

Hospice provides us with 2 ointments. (I used to use aquiphor for barrier/prevention and Desitin for issues) One is a protective ointment made by Smith&nephew...it is called SECURA. I love this one for prevention. It contains clove oil which is healing. The other is similar to Desitin. It is There Calazinc body shield. I use it if mom gets a red spot.

I purchased, out of pocket, 2 alternating pressure mattresses from Amazon. The cost is $85 each. It is a great investment. We have one in her bed and one on her recliner. I think Hospice will provide them free, but I had these for mom at least 2 years before she went on Hospice.

Hope this helps