You have a routine for your face. You probably have one for your gut health at this point too. Sleep deserves the same level of intention, and yet it's usually the first thing to get skipped, scrolled through, or replaced with "I'll just be tired tomorrow." Here's what actually moves the needle, and why one habit in particular is doing more work than people realize.
What Sleep Hygiene Actually Means
Sleep hygiene is just the set of habits that either support or sabotage your body's ability to fall asleep and stay asleep. A consistent bedtime, a cool room, limited screens before bed, and a dark room all send the same signal to your nervous system: it's safe to power down now. Skip enough of these and your body stays in a low-grade alert state that makes falling, and staying, asleep harder than it needs to be.
The Habits Actually Worth Keeping
A few of the highest-impact ones, none of them glamorous, all of them outperforming almost any supplement you could take instead:
- Keep a consistent wake time, even on weekends. Your body clock cares more about consistency than about catching up.
- Dim the lights an hour before bed to let melatonin start doing its job before you're actually trying to fall asleep.
- Keep the room cool, ideally somewhere in the mid-60s Fahrenheit. Your body temperature naturally drops to initiate sleep, and a warm room fights that.
- Cut caffeine earlier than you think you need to. It has a longer half-life than most people realize, so that 2pm coffee may still be working against you at 10pm.
- Get off screens before bed, or at minimum dim them and use night mode. Blue light is another signal telling your brain it's still daytime.
- Keep the room genuinely dark, not just dim.
Why That Last One Deserves Its Own Explanation
Of everything on that list, light control is the one people underestimate most, mostly because it's invisible until it isn't. Your body reads light as a signal, not a background detail. Even small amounts hitting your closed eyelids (a streetlight, a phone charger LED, that one gap in the blackout curtains) can suppress melatonin, the hormone responsible for telling your brain it's time to wind down.
And it doesn't stop at falling asleep. A full night of sleep cycles through stages, light sleep, deep sleep, and REM, roughly every 90 minutes. Deep sleep is where physical repair happens: tissue recovery, immune function, hormone regulation. REM is where your brain consolidates memory and processes emotion. Light exposure during the night, even brief exposure, has been linked to lighter, more fragmented sleep and less time spent in these deeper, more restorative stages. It's not just about falling asleep faster, it's about what your body actually gets to do once you're there.
Why This Is Part of Our Longevity Mission
Deep sleep and REM aren't optional extras, they're doing some of the most important repair and regulation work your body does all day. Chronic light exposure at night has even been associated with mood disruption and longer-term metabolic effects. We talk about pleasure as longevity medicine, but sleep is the other half of that same equation. You can't optimize one side of your health and ignore the other and expect either to hold up long term.
A Small, Low-Effort Fix
This is where our silk eye masks earn their keep. It's not a fix for every habit on this list, but it solves the one people skip most: real, total darkness, with zero effort required once it's on. Pair it with the basics above and you've covered most of what actually matters.
Give your REM cycle the dark room it's been asking for and shop sleep masks:
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Playtime Sleep Mask →
xoxo,
Cerē