Many may see the Physical Pillar as going to the gym, going for very long walks, running marathons, bike rides, dancing. The Physical Pillar does mean doing some exercise, which can be moderate without being excessive.
Sleep is part of Physical Wellness. Check your Emotional or Nutritional Pillar, they could be out of balance. Gratitude, part of the Spiritual Pillar can let us fall off to sleep naturally.
Our inner and outer beauty can be a reflection of the Pillars.