CBSE Class 10 Answered

Some normal people sleep with their eyes slightly open. This symptom, however, should prompt a search for an underlying neurological problem, namely bilateral facialFacial paralysis
Facial tics
Facial trauma

weaknessWeakness

. One of the more commonCommon cold

causes of such a problem, particularly if it has gone unnoticed by the individual, is a form of muscularBecker's muscular dystrophy
Duchenne muscular dystrophy
Muscular dystrophy
Muscular dystrophy - resources

dystrophy called facioscapulohumeral muscular dystrophy. This may be quite mild in some cases and may present only as some asymptomatic facial weakness and mild shoulder girdle muscle atrophy. It runs in families from generation to generation.
While there is no way of treating several of the causes of facial weakness, eyes could be held closed by pads, or even by surgery in extreme cases.