Cardigan (sacque) worked bottom up in one piece to yoke.
Hat worked top down.
Booties worked on straight needles.

Suggested yarns
Caron Baby Dazzleaire (1.5 oz skein / 168 yds)
Caron Baby Wintuk (2 oz skein / 341 yds)
or any Standard Baby
or Fingering Weight Yarn

Yarn Amounts
Sweater (Sacque) - 2 oz
Bonnet - 1 oz
Booties - 1 oz