This Cocoon Swaddle Bag by ErgoPouch is designed to keep your baby snug and securely swaddled without the need for complicated wrapping. There are press studs in the armholes that convert this swaddle into your baby’s first sleeping bag once they are able to roll. 2.5 TOG is suitable for room temperatures between 17-23C°. You will receive a FREE thermometer & What to Wear Guide inside this product to help take the guesswork out of dressing your child for sleep. Features: Breathable Natural Fibres Officially Hip Friendly Room Thermometer Included Safe Sleep Compliant Tog Rated For Warmth 2 To 1 Transition: Converts to arms free sleeping once rolling 2 Way Zipper: Easy access for nappy/diaper changes Bell Shaped Bottom: Allows babies legs to move Specifications: 2.5 TOG: 17-23C°  Material: Organic Cotton & Bamboo Sizing: Size 0000M: Chest 20 cm, Length 50 cm. To fit: Weight 2-4 kg, Height 55 cm, Size 0-3M: Chest 21 cm, Length 55 cm. To fit: Weight up to 6 kg, Height 62 cm, Size 3-6M: Chest 22 cm, Length 61 cm. To fit: Weight up to 8 kg, Height 68 cm, Size 6-12M: Chest 23.5 cm, Length 67 cm. To fit: Weight up to 10 kg, Height 76 cm, Size 1Y: Chest 26 cm, Length 78 cm. To fit: Height 84 cm, Size 2Y: Chest 29.5 cm, Length 83 cm. To fit: Height 92 cm Care Instructions: Gentle cold wash  Low tumble dry  Moderately Hot Iron  Drycleanable  Do not use bleach-based stain removers on the garments