A US couple, already the parents of three-year-old twins, have now welcomed sextuplets into their family after the husband encouraged his wife to have "one more" child.

Kate Gosselin, 29, says she was stunned when she learned just how large her family was becoming after husband Jonathan Gosselin, 27, suggested she might have "just one more".

Though Mum is ready to return home, the babies will remain in hospital in Hershey, Pennsylvania, for six weeks to two months.

Mrs Gosselin told NBC's Today show that members of their church are signing up to help out with feeding and nappy changing shifts.

On Thursday, three of six cribs donated by Delta Manufacturing were delivered to the church.