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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[–] [email protected] 6 points 2 days ago

20.5 in winter and 21.5 in the summer.

[–] [email protected] 4 points 2 days ago

I do 69 in winter because its close enough to what I want and funny. summer it depends on humidity. I often just keep it a bit below the temp outside because if you draw away humidity even low eighties is not bad.

[–] [email protected] 5 points 2 days ago

Off during the day and between 17 and 20 °C when sleeping depending on the season.

[–] [email protected] 2 points 2 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.

[–] [email protected] 5 points 2 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.

[–] [email protected] 6 points 2 days ago

68, but now the weathers nice enough that I don't need to use it

[–] [email protected] 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

[–] [email protected] 4 points 2 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.

[–] [email protected] 5 points 2 days ago

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.

[–] [email protected] 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.

[–] [email protected] 1 points 2 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.

[–] [email protected] 1 points 2 days ago
[–] [email protected] 4 points 2 days ago

72 in the winter, 69 in the summer

[–] [email protected] 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.

[–] [email protected] 1 points 2 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

[–] [email protected] 4 points 3 days ago

My wife likes us to suffer....

[–] [email protected] 3 points 2 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.

[–] [email protected] 3 points 2 days ago* (last edited 2 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.

[–] [email protected] 3 points 2 days ago

23 all year round

[–] [email protected] 3 points 2 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

[–] [email protected] 3 points 2 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

[–] [email protected] 3 points 3 days ago

71 in winter

70 in summer

[–] [email protected] 3 points 3 days ago (1 children)

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

[–] [email protected] 2 points 2 days ago

I knew upstate got cold but not that cold, damn

[–] [email protected] 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?

[–] [email protected] 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.

[–] [email protected] 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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[–] [email protected] 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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[–] [email protected] 3 points 3 days ago
[–] [email protected] 2 points 2 days ago

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

[–] [email protected] 2 points 2 days ago

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

[–] [email protected] 2 points 2 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...

[–] [email protected] 2 points 2 days ago

18 c - 23 c.

[–] [email protected] 2 points 3 days ago

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

[–] [email protected] 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.

[–] [email protected] 5 points 2 days ago (1 children)

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

[–] [email protected] 6 points 2 days ago

Probably about forty minutes then baste and tent with foil and put back in for another forty.

[–] [email protected] 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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