A night rate is a surcharge for unsociable hours, and this house does not have one: the fee at four in the morning is the fee at four in the afternoon.
This entry exists to close a question rather than to open one. A night rate, in the trade generally, is an amount added to a fee because the hour is inconvenient. There is no such amount here, at any hour, on any day, anywhere inside the ring.
An hour with one therapist is EUR 180 at ten in the evening and EUR 180 at four in the morning. Ninety minutes is EUR 270 on both clocks. Two hours is EUR 360, three hours EUR 540, and the night is EUR 1,250. Two therapists cost EUR 360 an hour whenever they come, and that same hourly figure covers a single therapist attending two guests, with EUR 720 where two guests each have their own. None of those numbers has a nocturnal variant hiding behind it.
Saturday costs what Tuesday costs. King's Day costs what an ordinary Thursday costs. A booking at the far edge of the centre costs what a booking two streets from the water costs, because travel inside the ring is not a line on the fee. Schiphol and the airport hotels are arranged separately, with the journey time agreed before anything is fixed, and that arrangement is about timing rather than a surcharge.
Only the deposit rule, never the price. On the dates listed under peak date, half the fee goes ahead on every booking, including the same-day hour that would otherwise be paid entirely at the door. The fee itself does not move by a euro.
Because the assumption is reasonable and almost everyone arrives with it. Taxis charge more at night, deliveries charge more at night, and a guest deciding at half past two whether to write at all is usually doing that arithmetic in their head. There is no arithmetic. The rung on the ladder is the whole cost.
Two lines settle it: where the room is, and what time you want someone at the door. The answer comes back with a name, an arrival window and the whole figure, whatever the clock says.