Yes. You can book them as optional orders through the link sent at the time of booking.
The rates are as follows:
Baby cot - ¥5,000 per stay
High chair - ¥5,000 per stay
Baby gate - ¥5,000 per stay
Child seat - ¥5,000 per stay
Please be aware that baby gates cannot be provided for Powderhouse, The Moo, Gravity, Kairos by the Mountain, and Prominence (Bluebird Apartments are all on one floor, so they are not needed).