I have used one of ibaby's and bought many other brands of constant temperature sleeping bags. Generally speaking, I think ibaby's sleeping bag has nothing to lose, except that it can't pick out any shortcomings. It is quite easy to use, but its advantages are not so bright.
Better to use and more expensive is nest designs' sleeping bag. Softer, more fit, more comfortable and lighter fabrics. But the advantages and disadvantages are obvious. It's expensive and cost-effective, and it will pilling when used, but I still recommend it, because it's comfortable and I bought a lot.
I-baby constant temperature sleeping bag is a sleeping bag product of I-baby. I-baby constant temperature sleeping bag adopts the patented technology of NASA-OUTLAST constant temperature technology, with PCM as filler, which can intelligently adjust the temperature of baby's skin surface with the change of external temperature and create a comfortable microclimate.
I-baby constant temperature sleeping bag Outlast technology is the only phase change material with the symbol of "Certified Space Technology".
It is a kind of phase change material that can change its shape with the change of temperature. Similar to micro air conditioner, it can dynamically adjust the temperature with the change of temperature. When the ambient temperature of the baby's skin surface is higher than 32℃, the outlast phase change material begins to absorb heat.
When the temperature is lower than 32℃, the baby will start to release heat, so that the baby will not be hot and cold because of the temperature change at night, and always stay in a comfortable somatosensory temperature range and have a good sleep.
The above contents refer to Baidu Encyclopedia -I- Baby Constant Temperature Sleeping Bag.