Accomodation for 4 kids in Holland and Germany

[Sazstar]

Just wondering if anyone can recommend a hotel chain or something similar that can accomdate 2 adults and 4 kids in Holland or Germany? DC are 7/5/3/1. We're driving to/from Denmark so have a stop over on both the out and return legs.
We're more than happy to take sleeping bags and mats for the elder two and sneak in if we need to but it is nicer to be legit!
Ta

We stayed here on the outskirts of Amsterdam - meninger hotel Amsterdam.
We were 2 kids and 2 adults.
Other places we just got through booking.com

I would totally recommend a day and night at Duinrell in Wassenaar, not too far from Leiden. Brilliant family campsite, a theme park attached to the site and overall a wonderful stop to factor in to your trip.

We did a week at B&B Hotel in Munich two years ago. They might have rooms big enough for you. There were 4 of us: DH and DD (5 and 2). We had a double or queen and the DCs had a bunk bed. Small room but reasonable price.

Oooh! That is what we wanted to do this year but left it too late to book. We have friends in Germany that we like to holiday with and usually go to Holland, but fancied a change, so would welcome any Danish recommendations.

We stayed in Holland last year with roompot. They have various sites/holiday parks with a mixture of accomadation, camping, chalets, mobile homes/caravans etc. we stayed in really lovely pre-fab wooden chalets. Most sites also have an indoor swimming pool.

This year we have booked a b&b in Kleve, Germany, as our friends are in the process of house hunting as they are relocating from the other end of the country.

It's a tricky one as it's illegal in some countries to put more than 4 people in room.
Booking.com could work but you need to be sure the hotel accepts the reservation which you will find out when your payment goes through.
Alternatively ask a small company like ato-tours.com or a local travel agent.