A very child-friendly boutique hotel situated in the center of Copenhagen and close to the metro that brings you to the airport in 20 minutes. They have family rooms for 4 people from 1695 Dkr, they often have special offers on family rooms, check website. They have a lovely patio with a sandpit and toys for kids. You can also rent Christinia bikes for a day for about 175 Dkr.
The furniture in the rooms are all of famous designers like the bedspreads from Missoni, the bedroom lamps from BestLite and so on. The hotel has a little lifestyle shop with beautiful Danish products.