this post was submitted on 20 Apr 2025
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I've been meaning to ask this for a while. I saw a comment a month or so ago. Person said they keep their thermostat at like 65 in the winter and 78 in the summer. 78 seems fucking insane to me. That's too damn hot for inside. How do you sleep at 78 degrees?

Are they a lizard person or am I a baby?

Edit 1: I love all the comments on this! Never thought this post would create such discussion. Looking at the comments vs upvotes it honestly seems 50/50ish that 78 is hot for the indoors. Can lemmy do polls?

(page 2) 50 comments
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68, but now the weathers nice enough that I don't need to use it

[–] unsettlinglymoist@lemmy.world 5 points 3 days ago

72 F / 22 C in winter and 68 F / 20 C in summer. We live in a LEED Platinum building and the electric bill for our 2-bedroom apartment never goes above $50, so we set it to whatever is most comfortable.

[–] TriflingToad@sh.itjust.works 1 points 2 days ago

some people in my family have sensory things where they feel slightly hotter than others. 69f for most of the year, in winter we hardly use the heater since it doesn't freeze where we live, but my room doesn't have full insulation since the garage is below it, so I have a little bathroom heater in winter.

If it was up to me probs ~71.

[–] k_rol@lemmy.ca 1 points 2 days ago

23 in winter and 22 in summer. Nights are set at 18 all year long.

Humidity is a bitch here. AC keeps it at 70° F overnight and 72° F during the day. Heat won't cut on unless it's 62° F in the winter, and it runs only a couple of times over the entire season.

[–] auginator@lemmy.world 2 points 3 days ago

I live in California’s San Joaquin valley. It gets hot in the summer. PG&E bill is high as hell. Having your place cooler than 78F is a total luxury. In my place keeping it at 78F would mean a couple $600 bills. I have since gotten solar but I’ve heard PG&E increased their prices twice since then. And they want to increase it even more.

On the other hand some places like Sacramento used to have super cheap rates and people could crank their ACs on.

[–] auraithx@lemmy.dbzer0.com 4 points 3 days ago

Not American so we turn the heat on when it’s cold and off when we’ve warmed up enough to save money.

78 is insane, only a few C off the highest temp ever recorded in my country.

[–] dan1101@lemm.ee 5 points 3 days ago

About 72 in the winter and 78 in the summer. 78 is fine if you aren't moving around much. 74 otherwise.

[–] cj2127@lemm.ee 4 points 3 days ago

72 in the winter, 69 in the summer

[–] jabathekek@sopuli.xyz 4 points 3 days ago* (last edited 3 days ago)

I set mine to 0π at night and in the summer, and ^3^/~2~π to ^11^/~6~π in the winter... the numbers have worn off and idk what the actual temp is, but I do know all of them are in Quadrant IV.

*I only open the window or curtains at night in the summer or maybe sometimes when it's raining in the winter. I think my dream house is literally a cave.

[–] acchariya@lemmy.world 1 points 2 days ago

80 in summer during the day, 75 at night, 78 day and night in winter. We do not have heat, and 78 is required for the air conditioning to run periodically in winter to dehumidify the house.

Florida keys

[–] Mad__vegan@lemmy.world 4 points 3 days ago

My wife likes us to suffer....

[–] sp3ctr4l@lemmy.dbzer0.com 3 points 3 days ago

I try to keep between 68 F and 72 F, but uh, the thermostat's method of measuring the actual temperature in the apartment is completely, laughably busted, so... hot days it goes on 62, cold days it goes on 84.

[–] Pika@sh.itjust.works 3 points 3 days ago* (last edited 3 days ago)

I keep it 68F(20c) downstairs, but the main house temp is regrettably 73F(22C) and I fight to keep it that low because the rest of the house is cold blooded.

[–] exchange12rocks@lemm.ee 3 points 3 days ago

23 all year round

[–] Corno@lemm.ee 3 points 3 days ago

By thermostat are we talking about heating? I'm cold-tolerant so I typically set mine to 15.5 C. If it gets any colder than that indoors it comes on

[–] ptc075@lemmy.zip 1 points 3 days ago

74F in the winter. In the summer I usually leave the A/C off and use fans, but if it gets above 90F I'll let it run for a few hours before bed.

I seriously don't understand how people farther north of me survive the cold. And I live in Atlanta, so there's a lot of them.

[–] mp3@lemmy.ca 3 points 3 days ago

During the cold season
20°C, 18°C at night and when away

During the warm season
23°C, 25°C when away

[–] IndustryStandard@lemmy.world 1 points 3 days ago
[–] GreenKnight23@lemmy.world 3 points 3 days ago

71 in winter

70 in summer

[–] sickofit@lemmy.today 3 points 3 days ago (1 children)

Upstate NY - 64°F in the winter, no A/C ( just a half-assed whole house fan).

[–] pdxfed@lemmy.world 2 points 3 days ago

I knew upstate got cold but not that cold, damn

[–] m_f@discuss.online 3 points 3 days ago

It depends on where you sleep. Basement vs upstairs can make a huge difference at the same thermostat setting. I keep mine set to be between 19°C and 25°C and don't have trouble sleeping.

Speaking of which, anyone else use Home Assistant / Z-Wave?

[–] LwL@lemmy.world 1 points 3 days ago

I agree that 78°F is way too high to be a confortable sleeping temp, though being in a country where residential AC isn't really a thing and inside temps at night often are higher than that in summer... you get used to it, it'll just never be fun.

My ideal sleeping temp is like 15°C but even if I had AC that seems too wasteful so I'd probably settle for 18-20

[–] NJSpradlin@lemmy.world 3 points 3 days ago

Right now we’ve had ours off for about a week, the pollen isn’t great for the GF, but she was unhappy about our winter heating bill being so damn high due to drafts.

Generally we set ours to 72f, though.

[–] sunbrrnslapper@lemmy.world 3 points 3 days ago (2 children)

72/65 in the winter 78/70 in the summer. I know we should keep it cooler in the winter, but I just really hate being cold.

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[–] Vanth@reddthat.com 3 points 3 days ago (1 children)

I acclimate to to the heat. I've lived in the South with no AC at all; 80F with humidity control is cushy by comparison.

Summer: open windows until heat and/or humidity causes concern for my electronics.

Winter Day: 68F Winter Night: 58F

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[–] YiddishMcSquidish@lemmy.today 2 points 3 days ago

I'm originally from Florida, so 78 is what I usually leave mine at during summer.

[–] neidu3@sh.itjust.works 2 points 3 days ago

When I visit the US I find that I usually set it in the mid to high 60s for optimal comfort.

[–] tissek@sopuli.xyz 2 points 3 days ago

Year long lowest possible to keep whatever fluids are in the radiators flowing. Not off but not too on either. And then open windows to regulate temperature.

My building is hot OK...

[–] HotCoffee@lemm.ee 2 points 3 days ago

18 c - 23 c.

70 in the winter. And, and we don’t have AC because most days are cool enough in the summer.

[–] Nemo@slrpnk.net 2 points 3 days ago (1 children)

Why would I care what temperature it is when I'm sleeping? I'm asleep.

That aside, 60 winter and 73 summer.

[–] SpaceNoodle@lemmy.world 5 points 3 days ago (1 children)

How well do you think you would sleep at 350°?

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[–] softcat@lemmy.ca 2 points 3 days ago* (last edited 3 days ago)

I've managed to have restful sleep at 78 with two fans blasting me, plus a window open to let in the relatively cooler night air. It's doable, but the body takes time to adjust. Humidity can be a big factor.

65 in winter is kind of understandable, since you could layer up or heat a selected space or yourself easier.

My usual comfy indoor ranges would be 70 daytime, 68 night for winter, then 75 throughout in the summer.

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