The bruises involving the eye lids is because of collection of blood underneath the eye lids. The commonest cause for bruises is usually trauma. Since you have mentioned that there is no history of injury
to the eyes or face, the condition may follow trivial trauma like sleeping with face down against pillow.
The condition is self resolving and usually not requires treatment.
Hence I advice you to wait for 7-14 days, if the condition worsens please do consult your eye doctor for examination and treatment.