Twenty NA class sleeper wagons were created between 1980 and 1983 by the conversion of low-sided wagons from classes HC and HCP. The first conversion was HCP 21673 in 1980. This was followed by 21425, 21446, 21454, 21459, 21471, 21545, 21553, 21610, 21611 from HC in 1982 and 21409, 21414, 21449, 21462, 21469, 21491, 21591, 21602, 21616, 21632 from written off HC in 1983.

Other Sleeper wagons The W.A.G.R.'s other sleeper wagons were the bogie vehicles in classes QCS, QP, QRS, and QS. Other Flat wagons The W.A.G.R.'s flat trucks were classes N, NC, NF, NFA, NFB, NFC, NO, NS, NV and NW.