How to Sleep Better
Poor sleep worsens anxiety, ADHD, mood, memory and immunity. Sleep science has evolved a lot in the past decade — and some of the most common "sleep better" practices don't work, or even backfire. An evidence-based guide.
What hurts your sleep (even when it seems harmless)
Screens close to bedtime
Blue light from phones, tablets and computers suppresses melatonin production — the hormone that signals to the brain that it's time to sleep. It's not just the light: the content (news, social media) also activates the alert system. Aim for at least 30-60 minutes screen-free before bed.
Irregular schedules
The circadian clock syncs to consistent timing. Sleeping and waking at very different times — even if you "make up for it" on weekends — dysregulates the cycle. Waking up at a consistent time matters more than what time you go to bed.
Caffeine after 2pm
Caffeine has a half-life of 5-7 hours. A coffee at 3pm still has half its active dose in your system at 8pm. Even without feeling the "wired" effect, caffeine interferes with sleep architecture — it reduces deep sleep (N3).
Alcohol as a "sleep aid"
Alcohol makes falling asleep easier but fragments sleep — especially in the second half of the night, when REM sleep is most concentrated. Sleep with alcohol is less restorative even if the duration is the same.
A warm room
The body needs to lower its core temperature to initiate deep sleep. A warm bedroom prevents that drop. Ideal temperature: 65-68°F (18-20°C). Taking a hot bath/shower 1-2 hours before bed paradoxically helps — the peripheral vasodilation speeds up the loss of core heat.
5 techniques with real evidence
A fixed wake-up time (not bedtime)
The most powerful anchor for the circadian cycle is your wake-up time — not your bedtime. Waking up at the same time every day, even after a bad night, is the single most important step. Today's poor sleep builds adenosine pressure that makes tomorrow night's sleep easier.
Sunlight in the morning
Exposure to natural light in the first 30-60 minutes after waking is the strongest signal for the circadian clock. It sets the brain's "start of day" and shifts the melatonin peak earlier at night. Just 10 minutes outside (or by an open window) already has a measurable effect.
A wind-down routine
30-60 minutes of relaxing activities before bed — a bath, reading a physical book, stretching, breathing exercises. The goal is to signal to the nervous system that active mode is winding down. It doesn't need to be elaborate: consistency matters more than which activity.
A dark, cool bedroom
Full darkness boosts melatonin production. An eye mask or blackout curtains work. Temperature between 65-68°F (18-20°C). A bedroom associated only with sleep — no work, no screens, no stimulation. Behavioral conditioning of the environment.
Sleep restriction (CBT-I)
If insomnia has become established: restrict time in bed to your actual sleep time (e.g. 6 hours) and gradually expand it as sleep efficiency improves. Counterintuitive, but it's the intervention with the strongest evidence for chronic insomnia — part of Cognitive Behavioral Therapy for Insomnia (CBT-I), and superior to medication in the long run.
Balanced Mind · App
Daily sleep and mood tracking
Track how sleep affects your mood, energy and focus. Spot patterns that go unnoticed and have data to talk through with your doctor.
Open Balanced MindFrequently asked questions
How many hours of sleep do I need?
For adults (18-64 years): 7-9 hours a night — per the National Sleep Foundation's recommendation. Chronically getting less than 7 hours is associated with cognitive impairment, higher cardiovascular risk and immune suppression. "Sleeping little but functioning fine" is often unrecognized chronic sleep debt — the body adapts its perception of sleepiness, but the cognitive impairment remains.
Does melatonin work for insomnia?
Melatonin is more effective for adjusting circadian rhythm (jet lag, shift work, going to bed too late) than for primary insomnia. The effective dose is low (0.5-1mg) — the higher doses (10mg) sold commercially far exceed what's needed. For chronic insomnia, CBT-I has stronger evidence than melatonin or long-term use of any medication.
Does ADHD make sleep worse?
Yes — sleep problems affect 70-80% of people with ADHD. The mechanisms include: delayed circadian rhythm (ADHD often comes with a "night owl" chronotype — preferring to fall asleep and wake up later), difficulty switching off an active brain at night, and stimulant medication effects (if taken late). Poor sleep worsens every ADHD symptom — and ADHD worsens sleep. Treating both together is more effective.
Does a daytime nap hurt nighttime sleep?
It depends. A short nap (20-30 min) before 3pm generally doesn't hurt and can improve cognitive performance. A long nap (over 1 hour) or one taken after 3pm can reduce the adenosine pressure (sleep drive) built up over the day, making it harder to fall asleep at night. For people with insomnia, avoiding naps entirely during treatment is recommended.