Restorative Sleep and Mental Health
Sleep and mental health are deeply intertwined — really a two-way street rather than sleep just being "good for" mental health. It is paramount to get sleep established when you are trying to improve your overall health and mental wellbeing.
How poor sleep affects mental health:
Emotional regulation takes a hit. Sleep deprivation amplifies the brain's response to negative emotional stimuli (via the amygdala) while weakening the prefrontal cortex's ability to keep that reaction in check. Basically, you feel more, and you're less equipped to manage it.
Anxiety and depression risk rises. Chronic poor sleep is one of the strongest predictors of developing anxiety and depression — not just a symptom of them. People with insomnia have a significantly higher risk of later developing depression.
REM sleep processes emotional memory. This stage helps "defuse" the emotional charge of difficult experiences. Without enough of it, distressing memories and feelings stay more raw and intrusive.
Irritability and stress reactivity increase. Even one bad night measurably lowers frustration tolerance and increases stress hormone (cortisol) reactivity the next day.
The reverse is also true — mental health struggles often disrupt sleep, creating a negative feedback loop. Anxiety can make it hard to fall asleep; depression is linked to both insomnia and oversleeping. This is why sleep is often one of the first things addressed in mental health treatment — improving it can ease symptoms, and ignoring it can undermine other treatment. It is difficult to feel in balance emotionally without proper sleep.
Sleep-specific practices with real backing for mental health:
Getting restorative sleep begins in the morning believe it or not. Start your day by getting more sunlight as early in the morning as possible for 10-15 minutes each morning within the first 30-60 minutes after you wake up. This helps to set your internal clock so you will feel sleepy at night. The morning light triggers serotonin which can help you feel more calm and positive throughout the day. It also gives you more morning energy. Just remember that you don’t want to look directly into the sun. However getting this small amount of sunlight daily can help improve your over all mental wellbeing.
Avoid late afternoon caffeine. It stays in the body for about 8-10 hours and has the potential to disrupt sleep quite a bit. As we age we do not clear the caffeine from out body as quickly. Also some medications can delay the clearance of caffeine.
Wind down early at least an hour before you normally would start to go to bed…really start to wind down because we always have more last minute things to wrap up before we get into bed and actually start to calm down. So set the stage for a better nights sleep. Stop using phones, TVs, or computers one hour before bed. The blue light disrupts natural melatonin production and the amount of REM sleep that we get nightly. If you have to be on your computer or telephone, I would recommend amber blue blocking glasses. However, ideally, it is best to just turn off the stimulation that you get from your phone, computer, or TV about an hour prior.
Consistent sleep/wake times matter more for mood stability than total hours alone — irregular sleep schedules are linked to higher rates of mood disorders, anxiety, and increased suicidality.
Don’t expect your body to go from 60mph to 0mph. You will end up feeling anxious. On average it takes 10-20 minutes to fall asleep.
Avoid drinking alcohol close to bedtime, as it ruins deep sleep later in the night.
Keep your bedroom quiet, completely dark, and cool (ideally between 60–67°F).
Some people find it helpful to listen to soft music, a mediation, or (pink or green) noise before sleep to wind down. Just remember to set a timer for 20-30minutes. You can also find flat external earbuds that are contained in a headband if you don’t like to have earbuds in while you fall asleep.
CBT-I (Cognitive Behavioral Therapy for Insomnia) is considered a first-line treatment for insomnia and has real evidence for also reducing depression and anxiety symptoms.
If you're noticing a pattern of poor sleep affecting your mood or you're dealing with persistent sleep issues, that's worth bringing up with a provider or therapist — it is a treatable piece of the puzzle even when other things feel harder to change.