Sleepy wings sell baby swaddling jackets that are designed to only cover a baby's arms. After I heard that some sleeping bags and swaddles can be bad for babies hips, I was glad to find this product. I use it during the day for naps to comfort my baby for longer sleeps.
If your baby uses a dummy or pacifier it also has a little slot on the hands to place the dummy for the baby to retrieve their dummy which I thought was a cleaver design. Good friendly customer service.