Our apartment is heated by radiator heat like many apartments in New York, and we can't control the heat level.

Olive's room is teeny tiny and the temp fluctuates from 68 degrees when it's like 5 degrees or less outside, to 81 degrees when it's 30+ degrees outside. Her room is by far the warmest room in the house, but not sure what to do about it!

We don't have ac in the room and it seems crazy to run an ac anyway when it's 30 degrees or less outside.

Any ideas on how to keep her room cooler? Last night she slept in a short sleeve onesie and some crop leggings, and she was still too warm, but sometimes the temp drops in the early mornings so I don't just want to keep her in just a short sleeve onesie and nothing else.