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A winter baby: the layette, item by item
Cold changes less than drying time does. Here is what genuinely shifts for a December to February baby.
Paul · September 30, 2026 · 5 min read
For a baby arriving between December and February, the first thing to know is that cold is not the main constraint. Drying time is.
Without a tumble dryer, a sleepsuit takes far longer to get back into the drawer in January than in July, and a damp sleepsuit does not count towards your stock. That is what pushes a winter layette towards the top of the usual ranges, far more than the temperature itself.
What actually changes
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Bodysuits: the same total, a dozen, but about 8 long-sleeved to 4 short-sleeved
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Sleepsuits: aim high, 11 or 12 rather than 9, because of drying
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Sleep sack: TOG 3 if the room is below 18 degrees, TOG 2 between 18 and 20
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Cardigans: 4 or 5 rather than 3, they act as a middle layer for every outing
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Pramsuit: 1, the only genuinely seasonal item on the list
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Hats: 2, as in any season, but knitted rather than fine cotton
Heating matters more than the weather
The right reference is the room temperature, ideally between 18 and 20 degrees, not the month on the calendar. A well-insulated flat heated to 21 degrees in February needs a TOG 2 sleep sack, not TOG 3.
A sleep sack that is too thick in a warm room does more harm than good. When in doubt, feel the back of the baby’s neck rather than their feet: a newborn’s feet are naturally cool, and it is not a sign they are cold.
The trip home
This is where people overdress most. One safety point is worth knowing: in a car seat, very thick clothing and padded snowsuits stop the harness from being tightened properly against the body.
The usual practice is to put the baby in normal clothes, tighten the harness, then lay a blanket or the pramsuit over the top of the harness. The drive home is often in a cold car, and this is the approach that gives you warmth and a correct harness at once.
What does not change
Muslins, bibs, fitted sheets, nappies, hooded towels: the quantities are exactly the same as in summer. Laundry and possets dictate those, and they do not know about seasons.
The cot does not change either. Even in midwinter, no blanket, duvet, pillow or bumper before age two, per ameli.fr. The sleep sack TOG handles the cold, never an added blanket.