Paris Hotel for Family of 5

The Hotel du Levant can give you two rooms, connected by a tiny, private hallway. Each room has its own bathroom and shower.

Here's their booking link. https://secure.reservit.com/fo/booking/2/177/availability?specialMode=default&langcode=FR&custid=2&hotelid=177&m=booking

I don't know when you're traveling but we used this room combo last year and liked it just fine. I love the location of this hotel.

Just FYI, you'll end up with two double beds and one single bed - so that might not work for you, depending on the ages of your children. In addition - it's not that inexpensive.

Here's another place I've considered, but never stayed in. I tried to book for my upcoming trip but they're full. These look nice. Two double beds in the bigger units plus the sofa, which might not work for you. Only one bathroom though.

https://www.pepperandpaper.com/apartments

You will be hard pressed to find a single hotel room that sleeps 5. I struggled trying to find a room that sleeps 4, and ended up with two rooms because sofa beds don’t work for us.

Look at the Hotel Residences des Artes. Small boutique hotel in a perfect location. Each floor only has two rooms. An “Apartment” is made up of two separate rooms:

A “regular” double room with a double bed (two twins pushed together), desk & chair, side chair, closet, bathroom with shower (no tub) with good size sink (plenty of space for toiletries) and mini fridge. Room is a really good size for Paris (170 sq ft).

A Jr. Suite made up of a sitting area with mini kitchen (two burner stove top, mini fridge, microwave). Huge bathroom with separate tub and shower, tons of vanity space. Sitting area has a sofa bed, desk & chair, tv, window that opens. The sleeping area is separated from the sitting area by a curtain. There is a huge king bed, desk & chair, 2 nightstands, tv, huge closet, and another window that opens. It is palatial in size by Paris standards (430 sq ft).

There is a restaurant downstairs, and breakfast is offered (for about 13€) at their sister hotel across the street. There are tons of restaurants, cafes and shops nearby. The metro and RER are a block away.

you may have more folks look at the question, beyond the good replies above, if you were to ask in the France main forum for questions and answers. You posted in the France Reviews Forum which is really for folks to post about trips they have taken and review them.