I was given a splint from my doctor, but I have big muscular calves so it didn't work (as soon as my foot went flat and I tightened it on my calf, my heel would raise a few inches). I ordered one like you are currently using, and I only do an hour on each foot a night. It causes my toes to go numb, which annoys me. But looked really hard at this one https://www.amazon.com/dp/B01G5S4XIK/ref=cm_sw_r_cp_apa_glt_fabc_K232THNBMSX564Y4769S
I still have it in my cart, because I will probably get it at some point. So while I can't say it is a good one, it might be a style to check out.
I got this one from Amazon and it does it’s job. I had to cut off the grippy part on the bottom or else it was a pain to wear in bed. I don’t like the lack of ventilation though my feet get hot whenever I wear it but it’s not awful.