Challenge to ALL.

This challenge is for a pass time. The first correct answer will be marked BEST:).
Here is the challenge:-
there were three women, each of these women had two daughters. The three women went on a journey, late in the evening they arrived at a lodging facility where they found only seven beds. All the women and their daughters were adults. Strangely, they slept each person on their own bed, that is to say they slept on the seven adds comfortably. Whats the answer to the puzzle? Work the grey mass!