Do you have an older pet that has lost his or her eyesight? Is your pet restless during the night keeping you up? Blindness is no reason to put your pet down. Likely what is going on is your dog is not able to decern day from night and does not release Melatonin at night for regular sleeping. Try Melatonin one hour before bedtime. We also discovered it helped our 14-year-old female Doberman with urgency peeing which was causing her to pee in the house before she could get outside.