These sources collectively examine various factors influencing sleep quality, particularly among older adults and young adults. One article from AARP discusses medications that can disrupt sleep, detailing how common prescriptions and over-the-counter drugs, such as decongestants and asthma inhalers, can lead to sleep disturbances. Several sources from PMC and the National Institute on Aging focus on age-related changes in sleep, noting that older adults often experience lighter, more fragmented sleep, a decrease in deep sleep, and shifts in their circadian rhythms, with some also addressing sleep disorders like sleep apnea and restless legs syndrome. Additionally, one study investigates the impact of excessive smartphone screen time on sleep quality in young adults, revealing a significant association between prolonged usage and poorer sleep, likely due to blue light affecting melatonin production. Finally, a Reddit post and a PMC article present research on auditory stimulation to enhance deep sleep in older adults, exploring its effectiveness and the individual variability in response, while also assessing the accuracy of consumer sleep trackers like the Oura Ring against medical-grade EEG.

Sources:

10 Medications That Can Cause Sleep Disturbances - AARP

Auditory deep sleep stimulation in older adults at home: a randomized crossover trial - PMC

Current Evidence on Common Dietary Supplements for Sleep Quality - PMC

How to Get More Deep Sleep: Tips for a Restful Night

I slept 660 hours with EEG to check new sleep algorithm accuracy : r/ouraring - Reddit

Melatonin for Sleep: Does It Work? | Johns Hopkins Medicine

Sleep and Older Adults | National Institute on Aging

Sleep health and our environment: a conversation with Chandra Jackson

Sleep in Normal Aging - PMC - PubMed Central

The adverse impact of excessive smartphone screen-time on sleep quality among young adults: A prospective cohort - PMC