Overview

Untreated sinusitis, especially in its chronic form (Chronic Rhinosinusitis or CRS) can significantly impact sleep quality and lead to other health issues. It is an inflammatory condition of the upper airway, causing symptoms such as nasal obstruction, excessive nasal discharge, and facial pain or pressure. Many patients also experience loss of smell, difficulty in concentration, impaired memory, and reduced productivity. Studies show that sleep problems are 60-90% more common in people with CRS compared to the general population. This not only affects day-to-day functioning but also decreases overall quality of life. 

Key ways sinusitis impacts sleep

Nasal congestion 

Nasal congestion, usually a stuffy or runny nose due to excessive mucus production, is a major cause of sinusitis including nasal polyps, enlarged turbinates, and deviated septum. During sleep, the muscles in the throat relax, worsening congestion and leading to coughing, breathing difficulties, snoring, or sleep apnoea. This often results in frequent mouth breathing, which dries out the mouth and throat, causing discomfort and disturbed sleep. 

Mucus production and postnasal drip 

Sleeping relaxes the muscles in the throat, also causing excessive mucus production in the nasal passage. This can result in postnasal drip, causing coughing or throat irritation, which disturbs sleep and leads to awakenings throughout the night. 

Sleep apnea and snoring 

The blocked airways from sinus inflammation trigger snoring and sleep apnoea, a condition wherein breathing suddenly stops during sleep. The relaxation of throat muscles during sleep worsens air blockage, causing gasping for air or brief pauses in breathing. This disrupts sleep cycles, leading to restlessness and daytime fatigue. 

Daytime fatigue 

Lack of quality sleep from sinusitis may lead to chronic daytime fatigue, difficulty concentrating, and even memory impairment. Poor sleep can cause mood swings, and anxiety, and impair cognitive function, affecting physical and mental health, including depression. 

Facial pain and headaches 

Sinusitis is caused by swelling in the nasal passage leading to facial pain, particularly in areas surrounding the eyes, nose, cheeks, and forehead. The constant pressure can make it uncomfortable to lie down and maintain restful sleep. 

Four domains of sleep disruption due to Sinusitis

Difficulties falling asleep

Nasal congestion and facial pain make it difficult to relax and achieve restful sleep. A blocked nasal passage forces mouth breathing, which dries the throat and causes discomfort. Additionally, facial pain further delays the ability to fall asleep. 

Difficulties staying asleep or nocturnal awakening

People with sinusitis often wake up frequently during the night, leading to fragmented sleep patterns and preventing them from achieving deep, restorative sleep stages.

Involuntary inadequate sleep time

Frequent awakenings and discomfort often result in insufficient total sleep duration. Even if a person spends a healthy amount of time in bed, a disrupted sleep cycle shortens overall sleep time, preventing the body from getting the rest it needs. 

Inefficient sleep

Even during sleep, its quality remains poor, leaving the person feeling unrefreshed. Persistent nasal congestion, sinus pressure, and discomfort prevent the body from reaching and maintaining deeper sleep stages, such as REM and slow-wave sleep. As a result, individuals wake up feeling fatigued, contributing to chronic sleep deprivation and daytime sleepiness.

Treatment

Endoscopic sinus surgery

For patients with severe CRS, endoscopic sinus surgery can improve sleep quality. The procedure widens the sinus airways, allowing air to flow more freely. This helps reduce nasal congestion, leading to better breathing and improved sleep quality. 

Non-surgical treatments:

• Saline Irrigations: Rinsing the nasal passages with saline solutions can help flush out mucus, allergens, and congestion. It also keeps the nasal passage moist, alleviating dryness and irritation
• Intranasal Corticosteroids: These nasal spray medications are highly effective in reducing inflammation in the nasal passage and relieving congestion
• Nasal Emollients: moisturising agents that help soothe the nasal mucosa, reducing discomfort from dryness and preventing irritation, thus improving sleep quality 
• Allergy Medications: For patients with allergies, antihistamines and other medications can reduce allergic reactions and improve nasal airflow
• Nasal Strips and Dilators: Nasal strips are adhesive devices applied to the outside of the nose to help open the nostrils, while nasal dilators are inserted into the nostrils to physically widen the nasal passage. Both can improve breathing during sleep, and reduce snoring