The optimal temperature for the human body is 37°C (98.6°F). When adults deviate from this, they can do something about it. Babies, on the other hand, are helpless. This realization was the impetus behind 37°, a line of temperature-regulating baby clothes. 37° uses a smart fabric that maintains and regulates body heat by storing it in its fibers, then slowly releasing it when necessary. This means that babies get neither too warm nor too chilly, which translates into a better chance of them sleeping longer. 37° keeps the looks of its clothes clean and neutral.
from London, United Kingdom
Temperature-regulating clothes for a happy baby.