Please or to access all these features

AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

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:
TeddySchnauzer · 08/11/2025 03:17

@GettingbysomehowMy Mum grew up like that as my grandparents’ house had no heating. She’s 81 now with Rhuematoid arthritis. She said it was a thoroughly miserable way to live. Why would you willingly inflict that upon a harmless baby when you’ve got central heating?! It’s like saying “when we grew up we had toilets outside so I refuse to use the inside toilet” 🙄

Gettingbysomehow · 08/11/2025 03:05

What did we do in the 60s, 70s and 80s then in fact for centuries before heating was invented? I remember being a small child on my grandparents farm where I spent my early years, there was no central heating at all and there was ice on the inside of the single glazed windows in the morning. It was absolutely arctic, there was only a coal fire in the living room and that's it. We just bundled up.
I lived in a house with no heating upstairs when I had DS in the 80s. We had an electric heater which was put on when changing his nappy and getting him dressed and again no double glazing. This was rural Bedfordshire. If it snowed I dragged a mattress downstairs into the dining room which did have a radiator and we slept in there.
Many people lived like this in the countryside. 16 degrees would have been luxury. Even when we subsequently moved to London in the late 60s there was no proper heating, single glazed windows and also rats. You just got used to it.
I never have the heating on at night now, I'd never sleep. It would make me ill.

Meadowfinch · 08/11/2025 03:00

16 degrees overnight is easily warm enough. The weather is positively balmy for the time of year. It's not cold yet.

Your MIL is being ridiculous. If your baby was cold, she would wake and cry, but she's wearing a babygro, vest and a sleep bag. She's fine.
During the day (when not in her sleep bag) 18 degrees would be better but millions of us grew up in much colder houses and are healthy.

As for the house, is the cold bedroom on the north side of the house? Have you checked loft insulation is adequate? Have you checked gutters are clear and not making the walls damp?

horseplay12 · 08/11/2025 02:56

This seems rather ott - it’s still so mild outside, it isn’t remotely frosty at all.
i don’t personally have central heating, but wasn’t brought up with it either (frost on the inside of bedroom windows and awful storage heaters) - we do, however have great insulation and plenty of blankets and layers - never a problem for DD as a baby, toddler or now

Bearybasket · 08/11/2025 02:56

We go for 18 at night and 20-21 during the day. 16 is definitely too cold imo

Also how do you think people manage in the summer. It gets plenty above 20 degrees and babies don’t start dropping dead.

FreshCarnations · 08/11/2025 02:50

My wife kicks off with me if our home is under 20c because of her asthma. Set it to 18c at night.

CombatBarbie · 08/11/2025 02:49

May be a stupid question but are you using the thermostat as youve said, if it goes below 16c you put it on....sounds like you are doing it manually, how do you know its below 16c?. Houses lose heat no matter how insulated they are.

And having heating on a low constant i.e. 17.5 is cheaper than boosting twice a day. Your house is cooling down and it needs to work harder to get back up to temperature.

Tight arse DH needs to be putting his child above a couple of pounds!!!

BernardButlersBra · 08/11/2025 02:45

She needs to keep her nose out, your house = your rules. I have noticed the older generation fixate about the heat and seen to want to over dress babies / children. There is no need typically

PinkPonyClubb · 08/11/2025 02:39

@lilseb it really isn’t that cold yet - for such a thick sleep sack! What are you planning on doing in the winter? My LO is still in a 1tog with baby grow and vest. I will move to thicker sacks as the temperature drop through winter. Our room is normally between 19-21. We have a toddler who also who sleeps perfectly well in his own room at the same temperature. Some questions to consider…

How is your baby sleeping? Are they waking regularly or want to sleep on you for warmth?

If you have moved rooms now at the end of autumn how do you plan on getting through the real cold in winter?

When winter comes how will you keep your baby warm if they already use such a thick sleep sack?

I don’t think you’re harming your baby. I think you’re making your life unnecessary difficult. Maybe because you’re anxious of your baby overheating.

BoyMummummum · 08/11/2025 02:37

Put the heating up. You have a small baby. Your MIL is right.

snackatack · 08/11/2025 02:33

I would get a second thermometer to check the heat

Thermostats can be out..

I would go for mid range in winter - it suggests that you add extra layers to stay warm.

Caerulea · 08/11/2025 02:28

ArseInTheCoOpWindow · 08/11/2025 02:19

You get a grip.

People can have their heating however they want. It’s up to them not you.

Well...yes that's what I was saying?

CrocsNotDocs · 08/11/2025 02:27

I think you need to out the heating up a couple of degrees. You seem very concerned about overheating but in huge parts of the world, babies are fine in places when 20 degrees would be a midwinter night. My 3 babies were fine through summers where there were several weeks of temperatures not dropping below 30 degrees at night, and 40 degrees in the day.

Tryingatleast · 08/11/2025 02:27

Why would you argue against your mil if you have to argue with dh over turning the heating on? And why is it going on that low? Would you not go 17 or 18?

fivebyfivefaith · 08/11/2025 02:22

Happyhappyday · 08/11/2025 01:58

That’s fucking freezing!! At that temp, my nose is constantly dripping and I’m in a coat. And not visiting you again. Where are you reading you’re supposed to have a baby in a room that cold? It’s not going to kill them
obviously if they are in layers but that’s bloody miserable.

16-20 is recommended by pretty much everywhere
at 16c I’m in a t shirt outside and comfortable inside, I don’t think I’ve ever had my heating above 18c

MIL not sleeping over our house being too cold
ArseInTheCoOpWindow · 08/11/2025 02:19

Caerulea · 08/11/2025 01:52

Cannot imagine deliberately heating my house to 20°c let alone higher. It feels stuffy & the kids (teens) complain too. Currently 18 in the living room with no heating on or set to come on. 18yo was sat in here earlier with his shirt off watching TV 🤷🏼‍♀️.

That said! It's just how we are, not tightness or anything. We'd all just rather cooler air & snuggly blankets.

OP - your set up sounds fine but I also don't blame MIL, necessarily, cos her comfort levels are obviously different & she's just worried about her grandchild. As is often the case, here especially, ppl are incapable of understanding that everyone is different.

(also - lot of ppl need to check their attitudes & their privilege at running houses at a minimum of 20°c & declaring any house less than that to be uninhabitable. Get a grip)

Edited

You get a grip.

People can have their heating however they want. It’s up to them not you.

Buxusmortus · 08/11/2025 02:09

TheBroonOneAndTheWhiteOne · 08/11/2025 00:10

I said for very short bursts now and again.
Most of the time it's between 22 - 24.

That's still absolutely boiling.

I like a cool house, I have it at 18 for a few hours morning and evening and 16.5 in the rest of the day, off midnight till 7 am. But when I have visitors I put it up to 19 because I know other people like it warmer. My bedroom is about 15 at the moment which is perfect.

But if I had a small baby I'd keep the house at at least 18 or 19 all day long, 16 is too cool.

ticklyfeet · 08/11/2025 02:06

Noshadelamp · 08/11/2025 00:16

Have you tried a dehumidifier in the cold room? If there's cold moisture in the walls the room will feel significantly colder than other rooms.

Also your mil is right, 16 is too cold.

Absolutely…a dehumidifier is reasonably inexpensive to run and the difference it makes in heating the room as well as drawing off moisture (obviously) is incredible. I have one downstairs and one upstairs and wouldn’t be without them.
Just to add, I’m in Scotland and it can get really cold from Nov through to March.
My heating is on at 24 during the day at 18 at night and I still have to switch on the living flame gas fire in the late evenings.

Happyhappyday · 08/11/2025 01:58

That’s fucking freezing!! At that temp, my nose is constantly dripping and I’m in a coat. And not visiting you again. Where are you reading you’re supposed to have a baby in a room that cold? It’s not going to kill them
obviously if they are in layers but that’s bloody miserable.

Caerulea · 08/11/2025 01:52

Cannot imagine deliberately heating my house to 20°c let alone higher. It feels stuffy & the kids (teens) complain too. Currently 18 in the living room with no heating on or set to come on. 18yo was sat in here earlier with his shirt off watching TV 🤷🏼‍♀️.

That said! It's just how we are, not tightness or anything. We'd all just rather cooler air & snuggly blankets.

OP - your set up sounds fine but I also don't blame MIL, necessarily, cos her comfort levels are obviously different & she's just worried about her grandchild. As is often the case, here especially, ppl are incapable of understanding that everyone is different.

(also - lot of ppl need to check their attitudes & their privilege at running houses at a minimum of 20°c & declaring any house less than that to be uninhabitable. Get a grip)

andfinallyhereweare · 08/11/2025 01:50

18 is too cold, way way too cold.

PurpleFlower1983 · 08/11/2025 01:50

Your MIL is right, put the heating on.

Zanatdy · 08/11/2025 01:47

16 is really cold in my opinion.

lurvy · 08/11/2025 01:43

I'm with MIL. Our overnight temperature is set to 17 (no babies in our house), daytime 19-20 (21 if really cold outside as it needs the boost). 16 during the day is cold.

Franjipanl8r · 08/11/2025 01:36

I’ve said 19 C - 21 C for the daytime but the evening can be cooler. We don’t have our heating on at all at night and sleep with the windows slightly open for lots of fresh air. It’s the 16 C daytime thermostat that’s miserly.