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Frequently Asked Questions
A 1.0 TOG sleep sack is a wearable blanket rated for mild rooms. TOG measures thermal resistance, so the number describes insulation rather than thickness, and two sacks that look alike can carry different ratings depending on what is inside them.
Three things are worth checking on any 1.0 TOG: the published room temperature band, the fit at the neck and armholes, and where the filling sits. Kaiya's 1.0 TOG has a GOTS-certified organic cotton shell with a fill of 30% camel wool and 70% SORONA® polyester. On the long-sleeve version, filling is removed from the back panel and the arm zones while front body coverage is retained, a targeted construction choice rather than an overall thinning of the sack.
Kaiya rates its 1.0 TOG sleep sacks for rooms between 68 and 75°F (20 to 24°C). For warmer rooms, 0.5 TOG is rated for 75 to 80°F (24 to 27°C). For cooler rooms, 2.5 TOG covers 61 to 68°F (16 to 20°C).
Room temperature is the starting point rather than the whole answer. What your baby wears underneath moves it, and the way to check is their chest, back, or the back of their neck. Hands and feet run cooler in infants because circulation is still developing, so they are not a reliable guide.
That depends on the room, not the month. 1.0 TOG is rated for 68 to 75°F (20 to 24°C), which is a common condition in an air conditioned nursery or a house that cools down overnight. Plenty of summer bedrooms sit inside that band by the early hours.
If your room stays above 75°F, 0.5 TOG is the closer match. If it drops below 68°F before morning, a 1.0 TOG is doing the right job. Check the room at the coldest point of the night rather than at bedtime, because that is the condition your baby spends the most hours in.
A sleep sack replaces a swaddle once your baby shows any sign of rolling, which is what safe sleep guidance advises. The trigger is the rolling rather than a birthday, and it arrives at different times for different babies.
Choosing 1.0 TOG specifically is a room temperature decision rather than an age one. A newborn in a 70°F nursery and a one year old in the same room want the same rating.
A sleep sack replaces loose blankets, which safe sleep guidance from the American Academy of Pediatrics recommends: a firm, flat mattress, your baby on their back, and nothing loose in the crib.
For a 1.0 TOG, match the rating to the room (68 to 75°F), and check the fit at the neck and armholes so your baby cannot slide down inside the sack. Safe sleep guidance also advises against hats indoors.
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