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AIBU?

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MIL not sleeping over our house being too cold

360 replies

lilseb · 07/11/2025 23:45

We have a 5mo baby. We've just moved into our property which has an EPC C and insulated/double glazing, but since the weather's turned cold we've found our bedroom is far too cold, unsure why and we want to get a specialist in. We are a bit sparse with heating but we put it on morning and evening to heat house up to 16c, we top up in the day if its especially cold and use heaters/fireplace in certain rooms we use more so they're warmer than the 16c (including said bedroom but this was not effective). The rest of the house is fine except this one room. Me and baby are now sleeping in spare room which is much warmer. Baby is in recommended vest sleepsuit and 2.5-3.5 tog sleeping bag for the weather.

MIL is convinced the issue is we don't put the heating on enough and having arguments with my husband about it. She's said its not good enough that we're using our dyson for heating or that me and baby have switched room and we need to have the heating on more, and she thinks 16c is too cold. She has told me and my husband separately that she is so worried about our house she's not sleeping, citing worries for my husband's asthma and our child's health. The latter has upset me because I'm trying to follow the recommended advice for temperature and I wouldn't risk my child's welfare. Husband says I'm being over sensitive, and I know she probably doesn't mean to imply it, but I do think she should be thinking through what she says.

Husband is a tightarse and I frequently ignore his moaning and switch heating on anyway - however we both feel that the issue with the bedroom is not the heating, and that we think 16c is a reasonable temperature that will keep us healthy and should keep house in good condition. I don't know if I get especially warm but I woke up last night feeling too hot and room temperature was 17c. My husband similarly is ok with cooler temperatures.

My view is its our house and our baby and MIL has said her piece so now needs to reign it in. AIBU? I know she's grandmother and I can't stop her worrying but we're already navigating a new house and new baby and could do without her rattling me. I had a conversation with her earlier which was pleasant and constructive enough and I'm hoping will nip some of this in the bud, but I don't know whether to be tougher if there's a next time.

OP posts:
whitepuffyclouds · 08/11/2025 11:40

We bought a dyson heater with a view to saving money by heating the room we were in rather than the whole house, but going from our energy meter, it seemed to cost more to run the dyson than it did to run the central heating, so if cost is the main reason, you might want to check the costs out.

I agree I would be too cold with heating on at 16. We usually leave it off during the day and put it on at 20 in the evening.

Kreepture · 08/11/2025 11:27

16 is far too cold.

If you want the house to sit at 17C comfortably, you need to be heating it to 18/19 a couple of times a day, then it will naturally drop to a more ambient lower temps.

We have our heating on twice a day for 1.5hrs, heat to 21, and it drops to a comfortable 18/19.. any colder and we struggle (both have arthritis)

my bedroom is kept at a steady 19 overnight and its comfortable with a duvet and short sleeves.

mindutopia · 08/11/2025 11:19

I think it’s fine as long as everyone is dressed warmly. Not all houses are new builds. We keep ours generally around 16c (we have plenty of money for heating oil, but it’s a big house and it’s wasteful to heat it all if we’re comfortable, if it’s 18 it’s too hot). When our eldest was born we lived in a draughty old cottage and it took running the heating plus an electric heater to get a room up to 18c.

If you’re happy with it, it’s fine. Humans haven’t really evolved living in super warm climate controlled environments. If you were unwell or uncomfortable, okay sure. But if you’re okay with it that way, I think it’s fine.

Swiftie1878 · 08/11/2025 11:08

Despite your ‘correction’ from up to 16 to minimum 16, you are BU. Thermostats go ‘up to’ the temperature you set them, then switch your heating off. 16 is too low - the absolute minimum temperature to house a new born in.
And the 16 - 20 degree guidance is for a sleeping baby, swaddled etc.

The bigger problem appears to be your OH.
‘He’s a tight arse’, so this temperature management isn’t about what’s comfortable, it’s about minimising spend on heating.
With a new baby, this will prove to be the tip of the iceberg, and you are going to need to get yourself a spine and advocate for your child’s health and interests in the face of a man focused only on money.

Good luck to you and the baby xx

Appleblum · 08/11/2025 10:59

16 is cold for me, and definitely too cold for a newborn. My heating is set at 24.

YenneferOfVengerburg · 08/11/2025 10:43

TheBroonOneAndTheWhiteOne · 07/11/2025 23:49

16 degrees?
Are you serious?
Mine is on at 24 most of the time, and boosted to 30 occasionally for short bursts.

And thats the other side of ridiculous.

I occasionally boost to 21, but normally stick around 20

Ella31 · 08/11/2025 10:42

lilseb · 08/11/2025 00:02

We're going off the Lullaby Trust recommendation for newborn babies in rooms at 16 - 20c. A lot of antenatal classes was focused on dangers of overheating babies in putting them in rooms above this temp (not that I'm especially worried about overheating now)

16 is the min for a baby room. Its 16 to 20 but ive always had my baby room at 20 and she's absolutely fine. I just dont overdress her. Your house is too cold, Im sorry.

Hopelesscase32 · 08/11/2025 10:30

16 degrees is bloody ridiculous. You may as well not bother. Im not surprised your mil is worried. Poor baby must be freezing

LivingDeadGirlUK · 08/11/2025 10:17

I think it depends how you are living your life in the house, up and rushing about all the time, going out to work during the day, its probably fine. Sitting working at home I would be really uncomfortable. Ultimately you get used to how you run your own house, I used to live in a house with no working heating but now have got used to being warm and feel cold when I go to my mums house.

TwinklyNight · 08/11/2025 10:11

Maybe some electric heaters in the rooms. Those space heater type, that look like wood stoves.
It sounds cold for a baby. 19 or 20 is cozier for a baby. (And me)

Idontknowhatnametochoose · 08/11/2025 09:42

16 is ridiculous especially with a new baby.

18 is the recommended temp
.

Anonymouseposter · 08/11/2025 09:39

It’s difficult being a MIL, always best to keep your mouth shut. She’s right though, your baby won’t be very comfortable at those temperatures. 16 degrees is okay at night if baby has a warm gro bag. During the day 19 would be more comfortable. I would find it difficult not to occasionally say something if I was your MIL even though it might get on your nerves. I would visit you but probably annoy you by wearing a fleece and scarf in the house. Your husband does sound a bit stingy and controlling. Perhaps tell MIL you would like it a bit warmer but your husband isn’t happy for you to turn the heating up, then she can nag him instead of you.

cinquanta · 08/11/2025 09:32

Mothership4two · 08/11/2025 09:24

Maybe your thermstat isn't accurate @cinquanta ?

It seems to tally with the other thermometers I have so I am fairly sure it is. The house stays a constant 16. However, we do turn it up if we are having visitors. Apart from DH’s best friend who always complains it’s “boiling”, turns the radiator off in his bedroom and opens the window.

Mothership4two · 08/11/2025 09:24

Maybe your thermstat isn't accurate @cinquanta ?

GeorgesMarvelousCalpol · 08/11/2025 09:22

Your house is cold, turn on your heat!

I assumed your mil was sleeping there, hence your thread title - but it seems not. So why can't she sleep? Edit: OK, I misread - she won't sleep over in your house because your house is so cold. Did this not tell you anything?

cinquanta · 08/11/2025 09:20

dottiedodah · 08/11/2025 09:10

I think 18/19c is the optimum temp. 16c is very cold and the damp is worse for you all as well.MIL is right here!

Our thermostat is set at 16 degrees 24 hours a day. We don’t find it cold, never mind very cold. Nor do we have any damp problems.

centaury · 08/11/2025 09:15

I'm with you that anything above 16C is warmer than I'd like for sleeping in but would find that uncomfortable during the day unless I was rushing about doing chores or completely bundled up in thick clothing, and I know I'd have problems with damp and mould (but I live in one of the most humid parts of England). I think it would be difficult with a young baby in those daytime temps esp since there tends to be a bit more sitting around, nappy changes, breastfeeding etc. 18C ideally.

To me anything above 20C is reasonable for elderly, immobile or sick people 😂

dottiedodah · 08/11/2025 09:10

I think 18/19c is the optimum temp. 16c is very cold and the damp is worse for you all as well.MIL is right here!

3luckystars · 08/11/2025 09:09

I think stinginess is a bad trait. If your husband is being stingy, even with a new baby, I’d be more worried about that than the cold.

Simplesbest · 08/11/2025 09:04

Mothership4two · 08/11/2025 08:53

Advice from Public Health England, NHS and Asthma + Lung UK is that 16 degrees is too cold during the day and isn't healthy especially for a baby

I've got 5 very healthy children from ages newborn to 11. Only ever get the usual coughs and colds. Me and husband never ill either so is fine for us. Had house for 15 years and no mould yet so...

Mothership4two · 08/11/2025 08:53

Simplesbest · 08/11/2025 08:23

I'm so shocked reading all these..I've still not put my heating on this year. Checked thermostat and my living and toddlers room is both 16. I'm guilty of opening all the bedroom windows in the morning though as I like fresh air and I don't bother shutting them till the eve. Also got a 7 week old baby. He's in a 3.5tog grow bag with arms at night and seems fine. I have tablet dehumidifiers in every room and no problems with mold. I'm not even wearing my jumper indoors yet so I guess we are all different. My older kids only wearing rain coats to school and I put their jumpers in their bags buy they never use them. I'd just get your MIL an hoodie to wear at yours.
If you're cold put your heating on. Of you're not don't.

Advice from Public Health England, NHS and Asthma + Lung UK is that 16 degrees is too cold during the day and isn't healthy especially for a baby

MissJeanBrodiesmother · 08/11/2025 08:52

She is right. Get the temp to 19 or 20 and your house will be warm enough. You can always turn it down o ce the house is warm. I don't have heating on overnight but I do get the house warm before we ate going upstairs to sleep. With a baby you need to do better. If your husband is too tight buy a decent oil radiator for the baby.

Mothership4two · 08/11/2025 08:48

Dontbeatwat · 08/11/2025 07:52

This is just silly. We used to live without running water, electricity, vaccinations.....etc etc. Just because we used to doesn't mean it's fine to do so now.

That post reminded me of the Monty Python Four Yorkshiremen sketch! 16 degrees - luxury! 😂

Simplesbest · 08/11/2025 08:23

I'm so shocked reading all these..I've still not put my heating on this year. Checked thermostat and my living and toddlers room is both 16. I'm guilty of opening all the bedroom windows in the morning though as I like fresh air and I don't bother shutting them till the eve. Also got a 7 week old baby. He's in a 3.5tog grow bag with arms at night and seems fine. I have tablet dehumidifiers in every room and no problems with mold. I'm not even wearing my jumper indoors yet so I guess we are all different. My older kids only wearing rain coats to school and I put their jumpers in their bags buy they never use them. I'd just get your MIL an hoodie to wear at yours.
If you're cold put your heating on. Of you're not don't.

lottiegarbanzo · 08/11/2025 08:15

16 is fine at night. Do you have a thermometer in the baby’s room? Dropping lower should be avoided.

I’d find it uncomfortable in the day but find 18-19 very comfortable. 20+ I find stifling.

What I can’t comprehend is your use of small electric heaters - always madly expensive - rather than turning the heating up a bit (cheaper and more effective).

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