Nest Designs TOG and Fabric Questions: A Room-First Guide

TOG is a garment insulation rating, not a command to choose a certain number because the calendar says winter. A Nest Designs 1.0 TOG sleep bag and a 2.5 TOG footed sleep bag differ in more than the number: exact fabric, sleeves, foot openings, size range and manufacturer instructions all affect the decision.

Start with the room where the baby or toddler will sleep. Health Canada says sleepwear and sleep sacks should be appropriate to room temperature, and a sleep sack must be the correct size. That room-first rule is more dependable than mapping the outdoor forecast directly to a TOG.

Question 1: What does TOG tell me?

TOG lets you compare the stated thermal insulation of garments. It does not tell you the child's complete outfit, whether a model fits, or how warm a particular bedroom will be overnight. Compare only the exact labelled models and follow the manufacturer's garment guide.

The current Bingo organic-cotton footed sleep bag is labelled 1.0 TOG. The current Alouette bamboo footed sleep bag is labelled 2.5 TOG. Those are exact product facts, not universal recommendations.

Question 2: Is 2.5 TOG automatically the winter choice?

No. A well-heated room can call for a different combination than a cooler room, even on the same night. Automatically choosing the highest rating can ignore the actual indoor conditions and the layers named in the exact model guide. Begin with the room, then consult the manufacturer's chart for that garment and assess the child's comfort.

Do not add a loose blanket to “fine tune” a sleep sack. Health Canada says a blanket is not needed when a sleep sack is used, and weighted sleep sacks, weighted swaddles and weighted blankets are not safe for babies.

Question 3: What changes between organic cotton and bamboo-labelled models?

The exact Bingo model is an organic-cotton garment; the exact Alouette model is sold as a bamboo sleep bag. Read each full fibre label on the received product. A broad claim that one material automatically regulates every child's temperature would skip the variables that matter: fabric weight, garment construction, room, underlayer and fit.

Choose material from verifiable preferences such as the exact label, hand feel you can assess, and care instructions you can follow. Do not use “bamboo” as a substitute for the manufacturer's TOG and garment chart, and do not infer a medical or skin result from the fibre name.

Question 4: Why do foot openings and sleeves matter?

A footed sleep bag gives a mobile child leg separation and foot openings rather than a closed sack bottom. The fit still has boundaries. The neck and arm openings must remain secure, the crotch must allow ordinary movement, and the legs cannot be so long that cuffs fold under the feet.

Long sleeves add garment coverage. Removable sleeves, where an exact model includes them, add a configuration choice. Never transfer that feature from one Nest product to another based on brand family alone. Confirm whether the selected model has fixed, removable or no sleeves.

Exact-model comparison

Question 5: How do I check size?

Use the exact Nest Designs chart for the selected model, not a chart copied from another garment. Pay attention to the minimum and maximum measurements and any walking or developmental requirement stated by the manufacturer. Once worn, check that the head cannot pass through the neck opening, the neckline remains in place, and hips and legs can move freely.

Health Canada warns that an oversized sleep sack can allow a baby to slip inside, while an undersized one can restrict hip and leg movement. “Room to grow” is therefore not a reason to leave the safe fit range. Recheck after a growth spurt and after washing.

Question 6: What belongs under it?

Use the Nest Designs garment guide for the selected TOG and the actual room rather than a fixed layering formula. The base garment also needs to fit and be in good condition.

Before every sleep, remove outerwear and hats, inspect the sleep bag and sleeper for loose parts or threads, and keep the sleep space clear. Health Canada's broader guidance is to place baby on their back on a firm, flat surface free of soft bedding and objects.

The concise answer

Choose between Nest Designs sleep bags in this order: actual room, exact model guide, correct size, foot and sleeve construction, then fibre and care preference. A 1.0 TOG model is not automatically for summer, and a 2.5 TOG model is not automatically for winter. Each can only be assessed in the room and configuration for which you are choosing it.

Compare current exact models in the Fall/Winter Edit.