Colder than you think, especially in dry air
Okay. New module — we're calling this one "cool, dark, boring," because that's genuinely the whole bedroom philosophy. Dark we've covered. Boring we'll get to. Today's the cool part, and I think it's the one people skip because it feels like the least important lever. It's not. It might be the easiest win in this whole course.
Here's the thing: your body needs to drop its core temperature to fall asleep and to stay asleep. That's not a preference thing, that's a mechanism. If your room is fighting that drop, you're working against your own biology all night, every night, and you probably don't even know it because you've just always kept your thermostat at 70.
The number people don't believe: somewhere around 65 to 68 degrees. That's colder than most people keep their house. If your gut reaction is "no way, I'd freeze," that's normal, and also kind of the point — you've calibrated to a temperature that's actively working against your sleep.
Why this hits different up here
Utah air is dry. Really dry. And dry air feels colder than the same temperature would somewhere humid, but it also does something sneakier — it dries out your sinuses and your throat overnight, which wakes some people up feeling awful even if the temperature itself was fine. So you end up in this weird spot where you want it cool for sleep, but the dry air makes "cool" tip into "uncomfortable" faster than you'd expect.
My fix was a humidifier in the bedroom. Worked well for me. One catch, and I mean this seriously: our water here is hard, and hard water will clog a humidifier with mineral buildup fast. If you get one, descale it — most of them just need a vinegar soak every week or two — or you'll be breathing whatever that gunk turns into. I didn't do this for about six weeks when I first got mine and it started smelling faintly like a gym bag. Learn from me.
What to actually do this week
- Check your thermostat before bed and just... lower it. Don't overhaul your whole house. Try 68 for a few nights, see how it feels, then try 66.
- If you run hot or cold at night, layer instead of cranking the temperature. A lighter blanket you can kick off works better than a warm room you can't escape.
- If your nose or throat feels like sandpaper in the morning, that's the dry air, not the cold. Humidifier, bedroom only, and actually clean it.
- Socks are not cheating. Cold feet keep some people awake even when the rest of them is fine. Wear socks. Nobody's judging you, I promise.
A quick word on trackers, since we're on the topic of "how do I know if this is working"
When I first got into all this I bought one of those smart rings — about two hundred bucks, wore it religiously for three months. I wanted data. I'm a contractor, I like a number I can point to.
Here's what actually happened: the ring mostly told me things I already knew from how I felt. Slept badly, ring said I slept badly. Groundbreaking. I still wear mine, I like the curiosity of it, but I've stopped telling people to buy one to fix their sleep. It just watches you not sleep. It doesn't lower your thermostat for you.
So for this lesson specifically — don't buy a thermometer gadget, don't get fancy. Just turn the dial down and pay attention to how you feel in the morning. That's the whole instrument you need.
Opinion time, since it fits here: I think most people reach for a supplement before they've done the free stuff. Melatonin gummy, magnesium powder, all of it — fine, not against it, but a lot of folks are popping something at 9pm while their bedroom sits at 71 degrees with 15% humidity fighting them the whole night. Free adjustments first. Pills are not going to out-muscle a room that's working against you.
One real caution
If you're going to run a humidifier, don't overdo the humidity either — you don't want the room damp enough to grow mold, especially in a closed-up bedroom in winter. Most humidifiers have a humidity readout or you can grab a cheap little hygrometer. Aim for 30 to 50%. More isn't better here.
Before next time
Pick one night this week, drop your thermostat a couple degrees lower than you normally run it, and notice how you feel when you wake up — not just whether you were cold, but whether you slept through. Write it down. That's the whole experiment.