What are common effects of having insomnia?

Insomnia Consequence. Hypersomnia decreased attention concentration decreased memory impaired judgment higher risk of motor vehicle and other hazardous instrument accident tiredness decreased immunity etc.
Side effects. Insomnia is difficulty falling asleep, staying asleep, waking up before desired bedtime and being left tired during the day. This is definition from icsd-2. Most people get frustrated and either anxious or depressed by this and develop negative behaviors to combat (drugs, online games or gambling, etc).