The length of time that Mr Freeze ice pops takes to freeze is around 6 hours.
When freezing Mr Freeze ice pops it's best to remove the Mr Freeze ice pops from the box and then place them in the freezer.
That way the freezer can freeze the Mr Freeze ice pops directly without the box being in the way and acting like an insulator.
The Mr Freeze ice pops will still freeze even when in the box but they freeze better and faster when taken out of the box.
If you put the Mr Freeze ice pops in the freezer before going to bed then the next morning the Mr Freeze ice pops should be frozen and ready to eat.