What Causes Colour Vision Disturbance While Having Chronic Insomnia?

For the past three months, I have experienced a change in my color perception upon awakening. It occurs about once a week. When I open my eyes, my off white walls and ceiling are seen as either green or blue and recently, yellow combined with white. The wood trim is seen as a deeper tone of whatever I am seeing on the walls. I have also had a few episodes of a sort of distortion of what I am seeing. This is always at night and I associate it with my chronic insomnia. I do not sleep more than 2 hours at a time before I wake up and usually get up for a period of 30 to 60 minutes. If I look outside while I am up, I may see movement in objects and lights to the point of not being able to correctly identify objects. I have attributed this to possibly experiencing a dream state. However, I am becoming concerned that it could be a problem with my eyes. I would appreciate insights in this regard.