What Is Insomnia and How Does It Affect You? Make an Appointment Ask a Question Search Conditions National Jewish Health insomnia expert, Jack Edinger, PhD, explains the daytime negative impact of insomnia or sleeplessness. Insomnia can cause fatigue, concentration problems, memory disturbances, mood problems and performance issues at work. Related Videos Sleepless? 5 Expert Tips to Help You Get Sleepy Long Term Effects of Insomnia on Health Tips to Stop Insomnia and Get Back to Sleep Cognitive Behavioral Therapy Helps Treat Insomnia Is Your Teen Getting Enough Sleep? Study: After Watching Disturbing Video, CPAP Usage Soars Is My Snoring Dangerous? Video Transcript Insomnia is the difficulty getting asleep, difficulty staying asleep, waking up too early in the morning, not having logged enough sleep time or any combination of those sleep symptoms, associated with some daytime negative impact. So, usually daytime fatigue, concentration problems, memory disturbance, mood problems, irritability, sometimes work performance suffers, depending how severe the case is. Want to use this on your website? Fill out the content usage request form and then copy this code: