Drooping Lower Eyelids or Scleral Show Due to Cheekbone Structure?

Hi,
A side view would be best to make judgments about the cheek bone. But given your age and facial structure I would guess that weak (hypo plastic) cheek bones play a role in your scleral show. The elasticity will not improve with sleep. One option to consider is an orbital rim/ malar implant with a canthoplasty. This might nicely address your concerns.

You have made a great observation. I hope you become an artist or a plastic surgeon. You need support in your cheek bones and under the lower eyelid area to push up the lower eyelids. The other procedure that can help is called 'Canthopexy'. However, looking at your photo there is a lack of volume in the cheeks.
Squinting or other exercises will not help.
I would suggest Sculptra as a filler which would increase the volume of the cheeks and lower eyelid areas. If that fails then you can try fat injections using your own fat.
Regards

It appears from the picture that there is a lateral rounding of the lower lid with some scleral show. This is not due to your sleep patterns. This can be repaired by an oculoplastic surgeon through a canthopexy or canthoplasty technique, which will actually bring that outer portion of the eyelid up and will be fixed at the orbital rim and bone at the outer corner of the eye.