Peace lilies generally like evenly moist soil, but not waterlogged. A good rule of thumb is to water when the top inch or two of the soil feels dry to the touch, then water thoroughly until excess drains from the bottom. In practice:

• Frequency: typically every 4–10 days in ordinary indoor conditions, depending on light, temperature, humidity, and pot size. In brighter or warmer environments, you may need water more often; in cooler or more humid spaces, less often.
• Method: water deeply so the root zone is moistened, then allow the pot to drain completely. Avoid letting the plant sit in standing water.
• Signs to watch: drooping can indicate thirst, while yellowish leaves or consistently soggy soil suggest overwatering.
• Tip: use a pot with drainage holes and non-compacted, well-draining potting mix. A moisture meter can help you track when to water, with readings indicating when to rehydrate.

If you’d like, share details about your Peace Lily’s pot size, light exposure (bright indirect, low light, etc.), and current soil moisture, and a tailored watering schedule can be drafted.