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3.5 TOG

The Sleep Onesie is a TOG-rated sleeping bag alternative, designed to be worn on its own during sleep or with a Layer/PJs underneath for warmth and comfort.

4.8
Rated 4.8 out of 5 stars
1,913 Reviews
Regular Price
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  • Free delivery on orders over £65
  • Estimated dispatch: 10 July 2025
  • 30 day returns & exchanges
4.8
Rated 4.8 out of 5 stars
Based on 1,913 reviews
1,913 reviews
  • Calli S.
    Verified Buyer
    7/5/25
    Reviewing
    Sleep Onesie 2.5 TOG Petit Pretzel
    Rated 5 out of 5 stars
    These are by far the best

    I accidentally bought the sleeping bag sleep suits and open3d the packaging on one so couldn't return it even though it is unused. I returned the packaged one for this and these are the absolute best !! I wish I had originally bought these!

  • Jessica B.
    Verified Buyer
    6/17/25
    Reviewing
    Sleep Onesie 3.5 TOG Petit Pretzel
    Rated 5 out of 5 stars
    Looks like great quality

    Haven't been using it yet as my husband is now cosleeping with son and he is fine just under covers, but will use when in the caravan. Nice looking and warm item. Need to put in a review or I'll keep getting reminders via email.

  • Michaela R.
    Verified Buyer
    6/13/25
    Reviewing
    Sleep Onesie 3.5 TOG Bon Appetit
    Rated 2 out of 5 stars
    Cold arms

    I don’t mind the ergo pouches but I am struggling to keep my child’s arms warm as the arms don’t have the same thickness as the rest of the suit, they are just fabric with no insulation. I’m sure ergo must have a reason for it but I certainly sleep with my arms under the same doona as the rest of me so not sure why a child wouldn’t. So now I’m trying to find a way to warm up just her arms at 3am each morning and not overheat her core. I have the same issue with the 1 tog having short sleeves, why would I put a blanket on all of my kid except the arms?