Paris hotel/apartments with 3 kids - for 1 night? An impossible request???

[bumpbumpbump]

We want to spend one night in Paris with 3 children and are struggling with accommodation. The kids are all under 6 (one will be 8 months old). I've seen various places do quadruple rooms, but does anyone have experience of having 2 kids and a baby in quad rooms - do they allow it? Apartment would have been good option but we only want to stay 1 night.
Does anyone have suggestions?
We don't want to spend a fortune, but somewhere fairly decent...

Most hotels with family rooms won't mind a cot in as well - its when they get older that it's a problem! (We've got 3 and need 2 rooms when we go away )A triple room with cot would be an option. Also try hostels - try hostelbookers . com for paris, they have ratings (for cleanliness etc0 and some hostels do triple/quad rooms with private abthroom. Also hihostels . com - hostelling international. Cheap and cheerful.

Don't mention it, bumpbumpbump.

Try www.citadines.com

Thank you - will check those out!
Apologies for delayed response - don't get on here much with a newborn in tow!

Yes, we stayed in Citadines near the Louvre. They've got very central locations and 1 bedroom apartments with short stays.