Orange or Banded Calcite is one of the most important stones for calming and healing the aura. It is used in reiki and it can be placed beside the bed for good sleep. 
My thoughts on these stones:
This is such a joyous and energy rich stone. 
The colour instantly alights the sacral and solar plexus chakras 
It helps mobilise your energies for all types of activities, especially creative ones, it gets the energy moving 
I feel enthusiasm and joy holding one of these
It makes you feel confident, cheerful and playful 
My mother loves this stone and says it brings her a feeling of vitality and health
The sense of wellbeing it offers eases anxiety
The banded calcite is particularly calming and would be an excellent bedside sleep aid.