My cat Catalina is 7 months old, pretty healthy and playful.
I'm worried because the temperatures are dropping now and the inside of our house isn't really warm during winter at night (15 degrees Celsius, 59 Fahrenheit). She sleeps on the sofa, and when I wake up, her fur and ears are cold, so I got her a fancy fluffy house about 50x50x50 cm in size, and it looks good relative to her size. She can move inside.
Now the issue is she doesn't sleep in her house, she keeps sleeping on the sofa and sometimes on the table. Should I worry, or are cats smart enough to use shelter if it is too cold for them? Can I do something so that she feels like using her house?
She isn't scared of her house or anything, she plays around it during the day and sometimes goes in randomly.