Our bedroom is pretty bright from the streetlights at night and the sun in the morning. This affects our sleep quality, so I am thinking of buying blackout curtains. I never bought curtains before and don't know at all which type to buy for the curtain pole in the bedroom. I read something about eyelit, pencil pleat, etc. but struggle to see which one is right. The curtain pole and the hooks on there look quite weird to me - I have attached two photos. We cannot take the pole out, so I assume we need to use these small hooks or get some larger hooks to be put around the pole. Since we rent this flat, I would like to use this pole and not replace it with something else. Could anyone tell me what type of curtain we need and what type of hooks we need to buy to fix it to this pole?