The Sleepybelly Infant Sleep Sack is a soft organic cotton baby sleeping bag designed for babies aged 3-12 months. Made for arms-free sleep, it is the next step after a newborn swaddle and gives your baby a cosy, comfortable sleep layer without loose blankets. Designed with removable sleeves, this infant sleep sack can be worn with sleeves on for cooler rooms or sleeves off for warmer nights, making it a versatile baby sleeping bag for year-round use. Choose from 1.0 TOG and 2.5 TOG options to suit your baby’s room temperature and sleepwear layers. The wide lower bag gives little legs room to bend, kick and move naturally, supporting healthy hip movement. The soft organic cotton fabric is gentle on baby’s skin, with a little stretch for comfort and everyday wear. Parents also love the quiet two-way WhisperZip, which opens from the bottom for easier overnight nappy changes while helping keep baby’s chest warm. The fit is designed to be snug through the chest, with well-fitted neck and arm openings and room through the hips and legs. Perfect for: Infant sleep sack Baby sleeping bag Baby sleep sack 3-12 months Organic cotton baby sleeping bag TOG-rated baby sleepwear Sleep sack with removable sleeves Transition from swaddle to sleep sack Baby sleepwear for cooler and warmer rooms Why parents love it: Suitable for babies aged 3-12 months Removable sleeves for flexible layering Available in 1.0 TOG and 2.5 TOG Soft GOTS certified organic cotton Wide lower bag for healthy hip movement Quiet two-way WhisperZip for easier nappy changes Meets AS/NZS 1249:2014 sleepwear requirements INPAA endorsed Use for arms-free sleep only. Do not wrap a baby inside a sleeping bag and do not add loose blankets over the top. Always place baby on their back to sleep in a safe sleep environment.