Listings show two TOG options: 3.5 TOG and 2.5 TOG. 3.5 TOG is described for room temperatures around 53–65°F, and 2.5 TOG for about 59–69°F — so the products together cover roughly 53–69°F.

Common conversion features are zippers combined with arm poppers to switch from an arms-in swaddle to an arms-out sleep sack. Some designs use two-way zips for easy diaper access, while others have multi-way (four-way) zippers that allow conversion between a sack and a suit with legs.

Care varies by item: some swaddle sacks recommend hand wash and tumble dry, while many muslin and organic cotton blankets list machine wash with options to tumble dry or line/lay flat to dry. Always check the specific product label for exact washing and drying instructions.

Listings reference certifications such as GOTS (Global Organic Textile Standard) and OEKO‑TEX (STANDARD 100 / MADE IN GREEN). Some items also note Global Organic Textile Standard certification and state compliance with safety standards in Australia and New Zealand.

Two-way and four-way zippers are highlighted for quick diaper changes and nighttime access; two-way zips are specifically noted for fast nappy/diaper changes with minimal disruption.