Measurements
To fit chest
56 61 66 71 76 81 cm (22 24 26 28 30 32in)
Length from back neck
33 38 43 48 53.5 58.5 cm (13 15 17 19 21 23 in)
Sleeve seam
20.5 26.5 31.5 37 40.5 43 (8 10½ 12½ 14½ 16 17 in)

Each source has a different set of recommended yarns. The following is from the Teddy version.

Materials
Baby Softspun 4 Ply
2 2 2 2 2 2 100 gram balls
Vanguard 4 Ply
2 2 2 2 3 3 100 gram balls
Stitch holders
Motif if required.