“In my experience, they sleep better outside, since they get fresh air, and they also get used to sleeping with normal background noise,” says my younger cousin Josephine, whose one-year-old daughter, Valerie, has slept outdoors for up to three hours per day since she was two months old. “I also think that they stay healthier this way. At least they look healthy when they come in from their power nap in the pram with rosy cheeks, and they feel much more alert and energetic after napping outside rather than inside.”