Answer:
I sleep by day, I fly by night. I have no feathers to aid my flight. What am I?
I am a seed with three letters in my name. Take away the last two and I still sound the same.
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
I am so delicate that even mentioning me breaks me. What am I?
I can be simple or I can be complex. I can be found in this riddle or in everyday life. I can be shapes or even colors.
A mysterious, fantastic creature, It has one defining feature, And for humans at their worst, In their eyes it's just a horse