Would you put your baby or toddler outside in the freezing cold for their lunchtime nap? Most Nordic parents wouldn't give it a second thought. For them it's part of their daily routine.
Daytime temperatures this winter in Stockholm have regularly dropped to -5C (23F) but it's still common to see children left outside by their parents for a sleep in the pram.
Wander through the snowy city and you'll see buggies lined up outside coffee shops while parents sip on lattes inside.
And if you are visiting friends and your child needs a nap, you may be offered the garden or balcony instead of a bedroom.
Helena Lee of BBC News explains: Link (Photo: Asa Eriksson)