This can even work when he's drowsy or in a light sleep, which you can recognize by eyes
moving under eyelids or other movements.
You may notice your child's eyes
moving under her eyelids.
Not exact matches
If I close my eyes until all after - images have disappeared and put on a sleep mask to ensure that I'm not peeking
under an
eyelid, I can «see» a faint but clear dark shadow of my arm when I
move it slowly back and forth in front of my face.
If you suspect that your cat is paler than usual, you can gently
move the
eyelid away from the normal position to expose the conjunctivae, or the mucous membranes surrounding the eye
under the lid margins.