# Intro
Drowsy Power, commonly abbreviated as DP in the community, impacts the outcome of sleep style spawns due to the [sleep style rolling logic].
# Formula
DP is calculated as follows:
$$
S_Z \times S_S \times M
$$
Where:
- $S_Z$ indicates the [Sleep Score] of the sleep session
- $S_S$ indicates the Snorlax Strength when the sleep session starts
- $M$ indicates the event multiplier. Without events, this is 1 by default
- Typically, [GSD] has different multipliers. For the actual multiplier number, please check the [GSD] guide
# Mechanism
DP is important because it directly affects which sleep styles appear. Higher DP increases the chance of rarer sleep styles spawning, which helps players unlock more entries in the Sleepdex and progress efficiently.
To act on this, players should:
- Aim for higher Sleep Scores by maintaining consistent sleep habits
- Raise Snorlax Strength before starting a sleep session
- Take advantage of event multipliers when available
## Pseudo-guaranteed Spawn
Given how [sleep style rolling logic] works, when DP is high enough, certain Pokémon become pseudo-guaranteed, meaning the probability of seeing them is very close to 1.
Such sleep styles are usually the ones with the highest [DPR], assuming the sleep style pool of a map has been completely unlocked.
Use [Sleepdex Lookup] and toggle ON `Show Last Roll Excl.` to check the sleep style given the sleep type and the map. The one with `Show Last Roll Excl.` shown is NOT the pseudo-guaranteed spawn.
Some sleepers would call this "you3" because people would complain about the 3 pseudo-guaranteed sleep styles for each sleep type in [Gressgrass Isle](https://pks.raenonx.cc/en/map/1) before.
[Sleepdex Lookup]: https://pks.raenonx.cc/en/sleepdex/lookup
[Sleep Style Rolling Logic]: https://pks.raenonx.cc/en/docs/view/help/sleep-styles
[DPR]: https://pks.raenonx.cc/en/docs/view/help/sleep-styles
[Sleep Score]: TODO
[GSD]: TODO