Noun
a cushion that makes a seat more comfortable
Source: WordNetHowever, removing them felt like lifting bare legs off a synthetic seat cushion on a southern summer day. Source: Internet
I agree - it is loud on startup, so we just muffle it (pillow, seat cushion, jacket etc) before turning it on. Source: Internet
If you have a cute seat cushion, no one will notice how muddy your kitchen floor is. Source: Internet