Size: NB (up to 3 months) Used Gunamuna Transitional Sleep Swaddle 1.0 TOG in the print “Imagine”. You can swaddle baby with arms inside or unzip for arms out. Double zipper to make for easy diaper changes. The only sleep sack my baby would tolerate (while they tolerated being swaddled). Washed using cold water and delicate cycle and only air-dried but still has pillage. Fabric has remained soft and it is still in good condition. Label is wearing off on the inside. Not having any more babies otherwise I would have used for another.