To those above me: insomnia IS losing sleep. Losing sleep isn't a symptom. If he's losing sleep, he does have insomnia - the question is what's causing it.lolwikiPatterns of insomnia
1. Onset insomnia - difficulty falling asleep at the beginning of the night, often associated with anxiety disorders.
2. Middle-of-the-Night Insomnia - Insomnia characterized by difficulty returning to sleep after awakening in the middle of the night or waking too early in the morning. Also referred to as nocturnal awakenings. Encompasses middle and terminal insomnia.
3. Middle insomnia - waking during the middle of the night, difficulty maintaining sleep. Often associated with pain disorders or medical illness.
4. Terminal (or late) insomnia - early morning waking. Often a characteristic of clinical depression.