Collocations for sanity - noun

doubt, question
There were moments when he doubted his own sanity.

fear for
I fear for her sanity if this continues much longer.

keep, maintain, preserve, retain
Getting away at weekends is the only way I can retain my sanity.

lose | recover, regain | threaten
The pace of city life threatens our sanity.

return
Stock market trading slowly settled down as sanity returned.

for your ~
Such a move is essential for the sanity of all concerned.