Great Britain's Lizzy Yarnold wants to become the first woman to defend an Olympic skeleton title.
"No-one has ever done that before and it would be an amazing achievement if I could do that," she told BBC News.
But the 26-year-old, who completed a career 'grand slam' with victory at the World Championships on Saturday, says rest is her immediate priority.
"It's been a really tough year or few years, so I need a rest and then I can come back stronger," she added.
The 2018 Games take place in Pyeongchang, South Korea.
The women's skeleton was only introduced into the Olympics in 2002 but Yarnold made it two wins in a row for Britain by emulating Amy Williams, who won gold in 2010.
Yarnold's success at the World Championships in Germany on Saturday followed her European gold earlier this year as well as victories at the Winter Olympics and World Cup in 2014.