Praying with support for my knees

Asaalamualaikum wa rahmatullahi wa barakatahu. I hope you are doing well and that Allah has kept you happy and healthy. I had a quick question about my Salaah. I live in an apartment with a relatively hard floor and find it uncomfortable to be on my knees during sujood. I have decided to put a pillow where my knees would go during this time. I was unsure if this was allowed, and was hoping you could inform me on the permissibility of such a practice in shaa Allah. Jazakhallahu Khayran and hope to hear from you soon in shaa Allah.