“Note: this romper can be used as a blessing/burial garment, or made to fit a live baby; sizes can be changed by changing needle size used. It’s adapted from one of many versions of the 5 Hour Baby Sweater.” ~ From the introduction of the pattern

Materials:
o 6-7 oz of WW yarn
o Size 8 (straights and circulars work best)
o 6” length of snaps on a cloth tape strip (from fabric store, bought from a bolt or prepackaged)
o 4 Stitch markers
o Yarn needle
o Sewing needle and thread
o 6 buttons

Direct link to PDF pattern.