NSW playground accident girl 'improving'

A six-year-old girl found unconscious on playground equipment in Sydney's west is still in hospital amid reports her condition improved overnight.

The the girl was found unconscious at a Penrith childcare centre, with reports she had become caught in a piece of clothing while climbing on play equipment.

It is understood she was found by children, who notified staff.

Westmead Children's hospital are unable to comment on her status, but her condition improved later that day, according to Network Seven.

Kidsafe NSW says the incident serves as a warning for parents and childcare facilities to ensure children are not in danger, particularly in winter weather when they are wearing extra clothes.

"What we do ask is that people just check that their clothing is suitable, that there are no balls, bubbles or ribbons that could get caught on equipment," spokeswoman Christine Erskine told the ABC.

The NSW police and Workcover are investigating the incident.