ErgoPouch Sleep Suit Bag 3.5 tog BerriesAnother wonderful design from one of our favourite suppliers. The only 100% organic cotton, winter weight Sleepsuit we can find! ergoPouch Sleepsuit has a 3. 5 tog rating, making it suitable for bedrooms approximately 14 to 21 degrees. 2 in 1 sleep suit converts from a sleeping bag to a sleep suit with legs making the transition from cot to car an easy one. ErgoPouch is known by making functional, gorgeous garments from high quality organic fabrics.