I really wanted to love these (I bought three different ones attempting to love them!), but it wakes my baby up constantly. The arms-up design sits so close to his face, that anytime he turned his head in his sleep or moved his arms, the sleep sack would brush his cheeks. Which would lead him to think he was about to be fed. So he would eventually wake up frantically searching and after a few minutes of the arms brushing his face, he would scream and cry because he wasn’t actually being fed. Don’t get me wrong, the quality is amazing, the designs are cute, they ship so quickly, but it just doesn’t work for getting quality sleep for me or my baby. It may be fine for other baby’s, but if you also have a nighttime wiggler that loves to eat, be prepared to only sleep in 30 minute stretches.