Night weaning Cheng

Cheng is turning 25mo next month, he is still a high-need breastfed toddler, although I have stopped pumping for a year. I have some issues with him where he has been very clingy when he sees me, all he says when he sees me is nen nen and he doesn't sleep thru the night yet. The experiences with Xuan told me that 3yo is the perfect age to wean off totally- we bid good bye gracefully as he suddenly just thought he had had enough, without having me to remind him no. Similarly, I do not have the plan to wean Cheng yet. But I'm hoping for those days where he sleeps thru the night without making noise. Hubby has been offering his help, including co-sleeping with Cheng. Without breasts, Cheng has no choice but continues sleeping. But it could be troublesome at the beginning because Cheng wakes up constantly to ask for milk and hubby pats him back to sleep. Some days, hubby has to walk and carry him around. But he is a good sleeper- falling asleep quite fast, so he has no issue. This has been going on for a few days, I hope I can see lights at the end of the tunnel.