June 21 is the summer solstice. The longest day of the year. Sixteen and a half hours of daylight here in Calgary, which is genuinely beautiful and also, if you’re someone who values sleep, a bit of a problem.
If you’ve noticed your sleep getting worse as the days get longer, you’re not imagining it and you’re not alone. Summer sleep disruption is real, it’s biological, and it’s one of the most underappreciated wellness issues of the season.
Your Brain Is Confused and It’s Not Your Fault
Sleep is regulated by your circadian rhythm, the internal clock that tells your brain when to produce melatonin and wind down for the night. Light is the primary input that sets that clock.
In winter, darkness arrives early and your brain gets a clear, early signal to start the sleep process. In summer, it’s light at 9pm and your brain is still waiting for the cue. Melatonin production gets delayed. You feel wired later than usual. You stay up longer than you meant to. And then your alarm goes off at the same time it always does.
Multiply that over several weeks and you accumulate a sleep deficit that affects everything — mood, pain tolerance, inflammation, cognitive function, recovery from exercise. The research on sleep deprivation is unambiguous and pretty sobering. It is one of the most impactful things you can do for your health and one of the most commonly sacrificed.
The Cortisol Factor
Here’s something that doesn’t get talked about enough in the context of summer sleep.
Longer days and more activity often mean higher cortisol levels staying elevated later into the evening. Cortisol is your primary stress and alertness hormone — it’s meant to be high in the morning and taper off through the day so melatonin can rise at night. When it stays elevated too long, melatonin gets suppressed and sleep suffers.
For women in perimenopause and menopause, this dynamic is amplified. Hormonal shifts already affect cortisol regulation and sleep architecture. Add long summer days and the result is often lying awake at midnight wondering why you feel exhausted but can’t switch off.
What Actually Helps
The good news is that summer sleep disruption is very manageable once you understand what’s driving it.
Control your light environment. Blackout curtains are not a luxury in Calgary in June. They are a sleep tool. Getting your bedroom genuinely dark signals to your brain that it’s time regardless of what’s happening outside. This is probably the single highest impact change you can make.
Protect your wind-down window. In summer it’s tempting to stay active and social right up until bed. Try to give yourself 45 to 60 minutes of lower stimulation before you want to sleep. Dimmer light, quieter activity, no screens if you can manage it.
Watch the evening alcohol. A common summer habit that feels like relaxation but actually fragments sleep architecture and reduces sleep quality measurably.
Support your endocannabinoid system. The ECS plays a direct role in regulating sleep, specifically in the transition from wakefulness to sleep and in supporting the deeper sleep stages where recovery happens. CBD supports ECS function without sedating you — it’s not a sleeping pill, it helps create the conditions where your own sleep system can do its job.
Our CBD Oil taken in the evening, typically 30 to 60 minutes before bed, is what a lot of people in our community use as part of their summer sleep routine. Start with a lower dose, hold it under your tongue for a minute or two, and give it a few nights to find your rhythm.
The Solstice Moment
There’s something worth acknowledging about June 21 beyond the sleep science. The solstice is the peak of the light, the top of the arc. After this the days very gradually start to shorten again. In Calgary that shift is subtle at first but it’s happening.
It’s a good moment to actually appreciate what this season offers. The long evenings, the energy, the ability to be outside at 8pm in a t-shirt. None of that requires sacrificing your sleep to enjoy it. With a bit of intention you can have both.
Train hard. Sleep well. Make the most of it.
Releaf is a Calgary-based, family-owned CBD company. All products are 100% THC-free and third-party lab tested.
This blog is for informational purposes only and does not constitute medical advice. Please consult a healthcare provider for personalized guidance.