Bassinet problem. Any advice??

My son is 7 weeks old and has hated his very expensive bassinet ever since he was born. He sleeps very well in bed with me and he sleeps ok in his inclined bassinet. I believe he would like his bassinet better if it was softer but I’m not sure what is a safe way to do that. Can anyone give me a suggestion on what to do?

I have already tried swaddling and it didn’t help.