Oops, it doesn't look like 'sit on a cat day' is a national day..

Other days

Slime Day

Comfy Day

Ormille Day

Stress Awareness Day

Chocolate Milkshake Day

Appreciate Yaself A Lil Extra Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Get Funky Day

Kale Day

Nail Polish Day