I stayed here with my friend, and here 6-month old son. My friend slept in the king size bed on the floor, but was comfortable enough. I slept on the extra bed, and the baby slept in a small bed we took from home. This worked out fine. The flat is located in a quiet, child-friendly neighborhood. Andre was very helpful in providing tips for transportation, and tourist information on Berlin. The flat was really clean too. We would definitely recommend this place!