One model is being created by U.S.-born designer Ben de Lisi, who has made dresses for stars including Kate Winslet. He told the BBC his design, made from luxury cotton, was "fabulous and aspirational."
Wraparound gowns are already being tested in the western English city of Bristol, and officials said Tuesday that feedback has been positive.
The new gowns will be unveiled next month, and the government says it hopes to have them in hospitals next year.