Vivax V DESIGN ACP-12CH35AEVI GOLD User Manual page 161

Sleep Operation
The SLEEP function is used to decrease energy use while you sleep
(and don't need the same temperature settings to stay
comfortable). This function can only be activated via remote
control.
Press the SLEEP button when you are ready to go to sleep. When in
COOL mode, the unit will increase the temperature by 1°C (2°F)
after 1 hour, and will increase an additional 1°C (2°F) after another
hour. When in HEAT mode, the unit will decrease the temperature
by 1°C (2°F) after 1 hour, and will decrease an additional 1°C (2°F)
after another hour.
It will hold the new temperature for 7 hours, then the unit will turn
off automatically.
Note: The SLEEP function is not available in FAN or DRY mode.
Fig. 3.1