Civic X seats are hard, I had the same issue but fixed now. Didn't opt for factory leather as met the supplier who told me they supply for both Honda and Toyota and they are not complete leather seats (it's a mix) so didn't think they were worth it.
For a while had a gel seat cushion works really well and butt doesn't fall asleep. Worked perfect for a Karachi to Lahore trip. 3 months ago decided to get seat covers as the baby is growing up and now stands on them.
Got Japanese artificial leatherite seat covers made and installed with extra foam padding from Zamzama Karachi. Totally worth it and no longer need the gel cushion. The padding actually makes the seats look much better too. Cost 12000 and highly recommended.