What wall switch for bath fan/light/heater?

What type wall switch do I need for a Panasonic FV-11VHL2 bathroom exhaust fan that includes an exhaust fan, heater, light, & night light? I'm replacing an old unit that has all the same functions except the night light & the old unit uses a 3-toggle (fan, heater, light) switch in one regular sized box. Apparently, Panasonic doesn't make the switches. I assume I'll need a 4-function switch to handle the extra night light...is that correct? If so, is there a 4-function switch out there that fits in one regular sized box? Or, do I have to add a second single sized box, or a double sized box, or what? If I have to add a second single sized box, would it be advisable to keep the fan & two light functions in one box & install a rotary-type timer switch in a second box for the heater? And who makes whatever switches you may recommend?

I really appreciate any advice.:confused1: