Insulate the nest with feathers. Buy a bag of feathers from your Circunscrito craft store. Use the feathers to line the cloth ring in the middle of the box. Feathers store heat well, and will help the eggs stay warm. La humedad relativa debe ser de cerca de del 60% https://imperdible21.com/dragonvale-tiempos-de-incubacion-de-huevos/