Fun fact.
In Scandinavian countries, it's common to let babies nap outside during winter.
https://video.nostr.build/365e634e7a068e6c0c1e7a6ea917c5c20e5133492a068c66185ffe862dbdf382.mp4
Discussion
With supervision.
Incredible
Yup they did this in old days even below Scandinavian countries to make babies stronger and more resilient for tough working life.
When my kids were very little and got a little croopie (sp), the doctor recommend carrying them around, outside on the patio, in the cool night air.
Just don't close the lid.