Hello everyone,
We have now been living in our house for six months (KfW 55 standard, although the heating demand is closer to KfW 40) and are really impressed with the indoor climate and comfort provided by the underfloor heating (operated by an air-to-water heat pump). The underfloor heating works flawlessly for us and seems well adjusted, at least the energy consumption is reasonable and the indoor temperatures are almost always comfortable. We don’t have a central or decentralized ventilation system; we ventilate traditionally by opening windows. So far, so good.
The only "problem" is the bedroom (about 17sqm (183 sq ft)): it faces northwest and is not directly heated (the flow temperature is set to zero), because even with the door closed it already gets “too warm.” The temperature in the house is around 21–22°C (70–72°F), which is our preferred indoor temperature. However, in the bedroom, we would like only 16–17°C (61–63°F), since 20°C (68°F) makes the bedding unnecessary 😀 But we simply cannot achieve this… Usually, we ventilate by opening windows crosswise for about an hour before going to bed, which lowers the temperature to around 13–14°C (55–57°F) — actually already too cold — but it quickly rises again and reaches nearly 20°C (68°F) in the morning. This causes waking up at night sweating and almost not needing the blanket. Not very restful… 🤨
Sleeping with the windows open is unfortunately not an option since we need complete darkness and absolute quiet.
How do you handle this? Is it something you just have to accept in extremely well-insulated houses, or how do you get the bedroom cooler? I can’t imagine all new-build homeowners comfortably sleeping at 20°C (68°F), as this doesn’t match the general recommendation for the [oB]optimal sleep temperature[/oB] for adults, which is between 15°C and 18°C (59–64°F).
Thanks in advance!
We have now been living in our house for six months (KfW 55 standard, although the heating demand is closer to KfW 40) and are really impressed with the indoor climate and comfort provided by the underfloor heating (operated by an air-to-water heat pump). The underfloor heating works flawlessly for us and seems well adjusted, at least the energy consumption is reasonable and the indoor temperatures are almost always comfortable. We don’t have a central or decentralized ventilation system; we ventilate traditionally by opening windows. So far, so good.
The only "problem" is the bedroom (about 17sqm (183 sq ft)): it faces northwest and is not directly heated (the flow temperature is set to zero), because even with the door closed it already gets “too warm.” The temperature in the house is around 21–22°C (70–72°F), which is our preferred indoor temperature. However, in the bedroom, we would like only 16–17°C (61–63°F), since 20°C (68°F) makes the bedding unnecessary 😀 But we simply cannot achieve this… Usually, we ventilate by opening windows crosswise for about an hour before going to bed, which lowers the temperature to around 13–14°C (55–57°F) — actually already too cold — but it quickly rises again and reaches nearly 20°C (68°F) in the morning. This causes waking up at night sweating and almost not needing the blanket. Not very restful… 🤨
Sleeping with the windows open is unfortunately not an option since we need complete darkness and absolute quiet.
How do you handle this? Is it something you just have to accept in extremely well-insulated houses, or how do you get the bedroom cooler? I can’t imagine all new-build homeowners comfortably sleeping at 20°C (68°F), as this doesn’t match the general recommendation for the [oB]optimal sleep temperature[/oB] for adults, which is between 15°C and 18°C (59–64°F).
Thanks in advance!
Winniefred15 Jan 2021 17:18I understand the dilemma of only being able to sleep in darkness and silence—I experience the same. In our case, we sleep in the attic, and the bedroom is the only room on that floor. This way, we heat that area very little, making it perfect for sleeping during winter. It’s dark, quiet, and cool (until summer arrives and the tropical heat forces us to open the windows, which of course brings in outside noise again… terrible).
I think in your situation, the only solution might be a thinner blanket. Opening the windows isn’t an option for you (and it doesn’t make ecological sense if the adjacent rooms are heated), and an air conditioner would not be acceptable to me for environmental reasons either. Give yourselves another 1–2 winters to get used to it.
I think in your situation, the only solution might be a thinner blanket. Opening the windows isn’t an option for you (and it doesn’t make ecological sense if the adjacent rooms are heated), and an air conditioner would not be acceptable to me for environmental reasons either. Give yourselves another 1–2 winters to get used to it.
16 degrees Celsius (61 degrees Fahrenheit) will almost certainly not be achievable. If you keep the window tilted open all the time, you’ll end up with dark spots above the window after 1–3 years.
Adjusted bedding and room setup are the only practical solution here, because no one sweats at 20°C (68°F) room temperature. I also tend to sweat quickly, sleep in boxers and a T-shirt, and use a 500g (1.1 lbs) silk comforter, which works perfectly.
You can forget down comforters, terry cloth covers, thick pajamas, and the like.
Adjusted bedding and room setup are the only practical solution here, because no one sweats at 20°C (68°F) room temperature. I also tend to sweat quickly, sleep in boxers and a T-shirt, and use a 500g (1.1 lbs) silk comforter, which works perfectly.
You can forget down comforters, terry cloth covers, thick pajamas, and the like.
If you don’t want to lose the cozy factor, there are special weighted blankets for covering yourself. As far as I understand, they are supposed to be comfortable for sleeping due to their weight and improve sleep quality, but at the same time not overly warm like, for example, down comforters.
Best regards, Kati
Best regards, Kati
halmi schrieb:
There are all kinds of things... you could even lay me down to sleep on the median of an eight-lane highway with just a towel.Funny enough, I actually have a huge blanket on my bed that’s about as thick as a towel, plus a regular quilted duvet. I usually go to sleep under both and find it cozy, but I only wake up under the “towel” blanket. Apparently, I get too warm at night and regulate it myself while sleeping. 😀Similar topics