Does sleepwalking affect daytime alertness or concentration?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Sleepwalking can significantly impact daytime alertness, focus, and concentration. Because episodes disrupt deep sleep, people who sleepwalk often experience fatigue, brain fog, and reduced cognitive performance the following day, which can interfere with work, school, and daily activities.

If you or a loved one is experiencing sleepwalking or related symptoms, understanding the underlying cause is the first step toward better rest. Take a free, instant, online symptom check to gain personalized insight into what may be going on and how to navigate your next steps with confidence.

Reviewed for medical accuracy: 07/20/2026

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Explanation

Sleepwalking, also known as somnambulism, can affect daytime alertness and concentration. People who sleepwalk may not get the restful sleep they need, which can lead to feeling tired during the day.

Effects on Daytime Alertness:

Tiredness: Sleepwalkers might feel more tired during the day because their sleep is disrupted.
Concentration: It can be harder for them to focus on tasks or pay attention in school or work.

Why This Happens:

Sleep Disruption: When someone sleepwalks, their sleep cycle is interrupted, which can affect how rested they feel.

If you or someone you know is having trouble with sleepwalking and it affects daily life, talking to a healthcare provider might help. To better understand your symptoms and get personalized insights, you can check your symptoms with our free AI-powered tool. For any mental health concerns, you can visit 988lifeline.org.

(References)

Lopez R, Jaussent I, Scholz S, Bayard S, Montplaisir J, & Dauvilliers Y. (2013). Functional Impairment in Adult Sleepwalkers: A Case- .... Sleep, 23450499.
Labelle MA, Dang-Vu TT, Petit D, Desautels A, Montplaisir J, & Zadra A. (2015). Sleep deprivation impairs inhibitory control during .... Journal of sleep research, 26087833.
Uguccioni G, Pallanca O, Golmard JL, Leu-Semenescu S, & Arnulf I. (2015). Is sleep-related verbal memory consolidation impaired in .... Journal of sleep research, 25212397.

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