Curtain Pole (Y Felinheli LL56)

Hello I hope someone will be able to help me please?

I'm living in Council temporary accommodation in Felinheli - it's really draughty and cold with a gap under the front door.

I've been gifted some ring top curtains I could put up to try to keep the heat in, but there's no curtain pole on which I can hang them.

So I'm looking for a long or extendable curtain pole to hang curtains to try and keep the heat in.

Thank you very much