Carpet offcut or old rug (Kendal LA9)

We've had to take up the carpet in our porch - which is where our 8 month old puppy sleeps. Does anyone have a carpet offcut or an old rugI could put down over the concrete floor as a temporary measure? Any size or any condition! The space is around 200cm x 170cm. I can't afford to do anything more permanent right now. Thank you so much.