After the swaddle stage we were looking for something cozy and safe to keep our baby in during sleep time. I looked at a lot of sleep sacks and decided it was important to get something that was made out of all natural materials, no polyester lining or fill. Made from 100% merino wool and 100% organic cotton, the Woolino 4 Season Baby Sleep Bag is an amazing sleep sack and I think an essential purchase for a new baby (or also of course if you already have a baby). This is a four season sleep sack that lasts from 2-24 months, so baby can wear it year round. Both of these factors make the higher cost (higher than a synthetic sleep sack) more economical in the long run.
The super soft layer of merino wool on the inside of the sleep sack helps regulate temperature, wick away moisture, and is somewhat antibacterial. The outside is 100% organic cotton, also very soft and cozy. The sleep sack doesn't need to be washed very often because of the natural materials and wool. But when needed it can be machine washed and dried, or hand washed and line dried. There are no added flame retardant chemicals...the wool helps it be flame resistant. There are two snaps on the top of each shoulder and a zipper that goes around the side and bottom. It is easy to get baby in and out, in many positions: asleep, sitting up, crawling around. The snaps are secure, so I don't think a baby could undo them. Same with the zipper, which also hides under a little tab at each end, so the baby can't get to it easily. The zipper can unzip in either direction, which is something unique to this sleep sack as far as I know.
The sleep sack comes with a thermometer and guide so you have some idea what is best to clothe baby in, depending on the temperature of the room. It is always good to use your own judgement as well. If it is on the warmer side in our apartment, which can happen in the summer in Brooklyn, we have had her in only a diaper at times. In the winter, you can bundle baby in a footed long sleeve onesie and even another layer if it's really cold. Having this sleep sack has become part of our baby feeling cozy and ready for bed. She associates it with bedtime routine, so I think it makes her aware that we are getting her ready to sleep, which seems to help her fall asleep quicker. There is no need for blankets that could fall off or cover her head.
This baby size, 2-24 months, also has two snaps under the arms which should stay closed when baby is smaller and can be opened once baby is older to make more room for arm movement. I love how it opens flat, this is great if you are putting baby down asleep. The sleep sack can be flat in the crib and baby can be laid on top and snapped in and zipped up very easily, without waking baby. There are two little slots in the sleep sack (front and back) for a car seat or stroller buckle. This is a nice addition to the sack.
It comes in cute recyclable and biodegradable packaging, with the thermometer and guide inside. I can't think of one thing I don't like about this. We love it!