Baby Sleepsuits: 12-18 Months

best baby sleepsuits

For more info and background on the Baby Clothing Size Directory please read the post here – in time, all of the directory posts will be in one Directory here, but this is the first one. Sleepsuits, 12-18 months. Measurements have been taken as follows:

  1. Length: back-of-the-neck to ankle (not toes), because the foot bits also vary so dramatically and it’s all getting far too scientific for me to handle, and
  2. Width: across front of chest, armpit to armpit.

Let’s get started!

1. Tiger Sleepsuits from Mothercare HERE – £11.25 for a set of 3.

mothercare sleepsuit

I’m starting with Mothercare because I’ve bought the most sleepsuits from them – they’re my everyday, go-to brand for basics. Length from nape to ankle (excluding foot) is 69cm, which seems to be pretty much the average, and width is 29. After about seventy-billion washes, the length from nape to ankle comes up at around 62cm and width 26cm, so quite a massive difference! Mothercare do loads and loads of patterns and prints and the multipacks of the sleepsuits and vests are often on offer – I find the quality to be excellent.

2. Next Fairisle Sleepsuit, HERE, £16 for pack of 3.

next sleepsuit

Just look at the bunny fairisle pattern on this sleepsuit! It’s so pretty for winter. I’m in love. Measurements for Next sleepsuits in size 12-18 months: 71cm length and 29cm width. Nice and roomy. In fact Angelica is completely swamped by this and she’s 16 months and really tall! So plenty of growing room… Next do loads of lovely sets for girls and boys and I think the pricing is reasonable – it’s about the same as Mothercare, so twice the price of a supermarket set, but I do find that the slightly more expensive ones seem to keep their shape better and look less tatty after multiple washes…

3. Pink Striped Sleepsuit, £7.50 for 3 at Sainsbury’s HERE.

sainsbury sleepsuit

I haven’t had the joy of doing multiple washes on the Sainsbury’s sleepsuits yet, so if anyone can add their opinions to the comments below then I’ll update if I get enough info on how well they wash and dry! Measurements: length 71cm, width 28cm, so again nice and lengthy if that’s what you need…

4. Polar Bear Sleepsuit, £16 from Jojo Maman Bebe HERE.

jojo maman bebe babygrow

Ugh. If they did this in a size 10 maternity then I’d be wearing it right now. I have a major thing for JJMMBB babygrows and sleepsuits, the prints are just so gorgeous and the quality is supreme. The first ever sleepsuit I put Angelica into when she was born was a Jojo one, with elephants, and it almost made me weep with cuteness. Until she pooed all over it, but hey. Expensive, but a real treat, these come up SHORT! I would buy a size up, but here are the measurements for 12-18 months: length is 68, width 29.

jojo maman bebe duckling sleepsuit

This duckling one comes up at 67cm, the shortest of all I tried, and the feet are quite teeny too, but oh my God the ducks. THE DUCKS. I can’t seem to find this online now, but peruse the whole selection HERE if you (and your wallet) dare!

5. Striped sleepsuit, £16 for pack of 3 at Marks and Spencer HERE.

marks and spencer sleepsuit

All the premium quality you’d expect from M&S – I think that their baby clothes and cotton basics are wonderful. The length is an about average 70cm (I’m starting to feel a bit silly here, because actually most of these sleepsuits do have a similar length!) and the width is 28cm. I don’t find that these shrink to much with washing and drying and I like the coloured popper that they have at the top of the legs so that you always do them up the right way! There’s nothing worse than getting to the top and realising you’ve done the poppers up all wrong…

6. Pink Spotty Sleepsuit, £7 for pack of 3 at ASDA HERE.

george at asda sleepsuit

A nice and decent 70cm length and 29cm width, here, though I do have to say that my ASDA sleepsuits haven’t had a good time in the washing machine, historically. They don’t like it in there. Mind you, I’ve always bought just plain white, and plain white never washes up that well, especially when it’s had about ninety-thousand poos done on it…

I realise I’m missing GAP, Tesco, H&M and – who else? I shall try and fill in the gaps when I can, and I’ll do a little ticklist of brands for when New Baby arrives and I start again with the newborn sizes. If anyone wants to add any useful commentary about sleepsuits and cotton basics or sizing in general, please use the section below!

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  1. October 31, 2016 / 9:03 pm

    This is so useful Ruth. I haven’t got one to hand to measure, but the Lindex stuff comes up HUGE – great for a tall baby (not so good for my munchkin). Check out their newborn stuff too, as it’s unbelievably cute and really well designed: kimono style vests, two sets of popper so they last longer etc. But mainly, the cuteness!

  2. Kayleigh
    October 31, 2016 / 9:11 pm

    We mainly have Next and Tesco ones! Wasn’t expecting much from the Tesco ones but I’ve been pleasantly surprised. They do come up longer than the Next ones though in the leg.

  3. April
    October 31, 2016 / 9:15 pm

    I think this is a wonderful idea. While I am sure that everybody washes in hot water, which accounts for the shrinkage, perhaps you could note generally the detergent, and if you dry them in a hot dryer?

    I wish someone would do this for women’s jeans and tshirts.

    • November 1, 2016 / 9:16 am

      Persil non-bio, washed on 40 degrees “quick wash”, tumble dried on a normal setting, not low heat.. x

  4. Ayesha
    October 31, 2016 / 11:13 pm

    Such a useful post Ruth! I use Sainsburys and Next and i think they are pretty much the same in sizing and quality. My sainsburys clothes also wash well so they are my go to brand at the moment.

  5. Una T. Tuna
    October 31, 2016 / 11:16 pm

    So, when are you posting the one about ADULT sleep suits? Or, as we call them, footie pajamas…

  6. Gingerbee
    November 1, 2016 / 5:31 pm

    We’ve been quite impressed with Tesco and Primark. They’ve washed and tumble dried really well and retained their shape and softness.

  7. Bec
    November 1, 2016 / 8:34 pm

    I’ve found sainsburys wash fine but have too few poppers! Sounds silly but my wriggler always gets his legs wedged half in half out from poking his leg through a gap between the poppers!
    H&M do great prints, wash well, and do footless ones which I prefer now he’s crawling and walking 🙂

  8. Claire L
    November 1, 2016 / 9:28 pm

    Last year I bought loads of Sainsbury’s baby clothes cos I loved the designs and they were perfect for my baby, then 1 year old. Now the designs are still nice but not quite as great as they were. I still get them from there though, they’re cheap and wash well, although maybe not as well as JJMMBB or M&S. My daughter’s still wearing clothes from last year as the growth slows down in the third year, I couldn’t believe how quickly she grew out of each size baby grows in her first and second year!

  9. Anja
    November 1, 2016 / 10:08 pm

    This is yet another really great idea, Ruth. And I definitely second the love for JJMMBB. I have the sleepsuits in all sizes now. Absolutely adore the elephant ones. And yes, they are really good quality!

  10. Magda
    November 2, 2016 / 7:10 am

    Those differences I can somehow understand. You should see how different sizes have baby clothes among different brands in Poland where on the label is for example 80cm (which supposed to be a baby length). My one year old girl is wearing some sweaters 74cm, some stuff is 80 and she wears sleepsuits 86 (I think 86 is more or less 12-18 months because I have one from M&S from UK). And my baby length was 74 cm 3 weeks ago messured by a doctor 🙂 So if somebody who wants to buy her something asks me what size she wears I say the biggest one because it would be kind of silly asking “where would you like to do shopping” or telling all brands and sizes 🙂

  11. E.
    November 3, 2016 / 6:13 am

    Interesting post, thanks! If only I could find something similar for brands where I live…
    Just a suggestion (which would meen more work and measurements for you. Sorry). It seems that the overal length doesn’t vary much, but that the main difference between brands is the lenght on the main body/the leg section. Perhap including those lengths would be useful? And a summary table for quick reference at the end? (Sorry my scientific way of thinking at work here…)
    All the best for your second pregnancy. I always like reading you, even when the subject of your posts do not especially interest me!

  12. EWA
    November 3, 2016 / 3:19 pm

    My baby girl is 15 months and we still use baby growth size 9-12 from Next, actually just have started to use it because she still fit size 6-9. She is 80 cm and 10 kg. Don’t know when size 12-18 will fit her, probably near second birthday

  13. Amanda
    November 3, 2016 / 11:41 pm

    Slightly off track but on the subject of jjmmbb, am I the only one absolutely gutted that they don’t sell sleepsuits after the age of 18 months. It’s then just pjs instead. Will be devastated when he can’t fit in them anymore and they come up small anyway so it’ll probably be when he’s about 15 months!

  14. Christina
    February 1, 2017 / 5:39 pm

    In love with JJMB. My bank account doesn’t share that love.
    Also adore Mamas and Papas sleepsuits-the fit is similar to JJMB which suits my babe perfectly. Love the feet on them. Find mothercare, Sainbos and most other brands have weird long thin feet when the short stumpy ones are far cuter! M&Ps also often have 3 for 2 offers on packs of sleepsuits so you can get 9 for £30 odd.

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