IMO giving your energy body a rest is a good idea. But if you are using fields for permanent physical change, then you should consider this post from Team Sapien’s official FAQ:
Q: What if I miss one day? Do I have to listen everyday?
[…] if you want to make permanent changes like to grow taller or lighten your eyes, you MUST listen to it every single day. You will stop the momentum of change happening in your body if you miss a day. It is likely that it will revert back to normal if you stop listening.
I highly suggest you listen once in the morning and once at night. This is all it requires to make the changes you desire to listen consistently and not miss a day.