Temperature:
Regular house temperatures to slightly on the warm side. Avoid hot or cold drafts.

Light:
While Spathiphyllum will tolerate very low light, without some brightness from a window or a lamp, they are unlikely to bloom much, if at all. They can tolerate anything except direct, and bloom more the more light they receive.

Water:
Ideally, keep the soil evenly moist (not wet!) Otherwise water thoroughly when the soil just becomes dry but do not let the plant sit in water. Avoid allowing the plant to wilt (although Spathiphyllum will recover amazingly from wilting very badly, you’re likely to see a lot of yellow leaves as a consequence if it happens too often.) Like low light, Spathiphyllum will survive low water levels, but will never thrive as well as when proper watering is followed.