My two GSs have been staying overnight once a week since they were babies (about 6 months) and now at 4 & 7 years old their routine is so established they are no problem at all and never stir all night. This works better then being dropped off at my house at 7.15 am by parents with a long drive to work.
Conversely my two GDs (2 & 4) have only just this year started staying overnight about once a month and it's still a bit of a novelty and an excuse for high jinx and bed swapping! AND one of them sings and re-enacts her day in noisy dreams, so I'm constantly awake and listening.
What do other grans with overnighters think works best?
Old sayings with a theme 2 ( continuing *nanna8*'s thread)