Pokémon Sleep: Which Eeveelution to Choose?

Out of all of them, Vaporeon is the most suitable for ingredient finding. While all Eeveelutions are Skill specialists, Vaporeon’s skill could work well with those Eevee with Sub Skills related to Inventory and Ingredients that often do not mesh with the others.

Still, as Skill specialists, Eeveelutions will always benefit from Skill Trigger S/M and Skill Level Up S/M. But you might want to prioritise, for example, Sylveon or Espeon when these rare specimens come around.

Jolteon is the fastest at gathering resources. This is why you might want to prioritise Eevee that have Sub Skills such as Helping Bonus or natures that boost Speed of Help.

Jolteon works very similarly to Raichu, so keep that in mind if you already have a viable Pichu in your box. With the release of Old Gold Power Plant, every Eeveelution now has a favourable research area!

Flareon is currently considered one of the weaker options. Its Main Skill requires you to have an ingredient/cooking-oriented team, as it will occasionally let you cook bigger meals.

In general, Flareon will fulfil a support role. Like Vaporeon, while it benefits from skill boosts or berry finding boosts, these are more optimal for Espeon/Sylveon or Umbreon/Glaceon.

Espeon is currently one of the best Eeveelutions, with a fairly quick gathering rate and a very good Main Skill, especially when levelled up. Since the release of Lapis Lakeside, it's become even more coveted, although free-to-play players might want to reserve their Skills Seeds for a team member whose main skill is Energy for Everyone S instead.

One thing to consider is that the requirement for evolution (like for Umbreon and Sylveon) is to sleep together for 150 hours. This means keeping an Eevee on the team for roughly two weeks, which can slow you down somewhat.

Umbreon is the slowest at gathering resources, but it can be a real asset in Snowdrop Tundra where Wiki Berries are Snorlax’s favourites. Its Main Skill means it can self-sustain and with Berry Finding S you can maximise the amount of berries Umbreon will gather.

In November 2024, Umbreon's Main Skill received an update and it is now the only Eeveelution with a signature ability, Moonlight. It restores Umbreon's own energy and, occasionally, it will restore a random member's energy by a small amount. In general, this is not as valuable as Energy for Everyone, but it shows that other Eeveelutions may receive similar updates to their Main Skill in the future.

Avoid picking Eevee with Skill Trigger S/M, Skill Level Up S/M or Main Skill Chance as you will get much more out of them on Espeon and Sylveon.

Unfortunately, at the moment Leafeon has very little to offer. It’s best suited for support, but, unlike Flareon, its Main Skill can be very unpredictable, occasionally energising a single one of your helpers at random.

Leafeon, like Espeon, hugely benefitted from the release of Lapis Lakeside. However, it is outclassed in both berry gathering and energy support by many other Pokémon.

Glaceon is most similar to Umbreon, so I would suggest a similar build, as they also share the same favourable Research Area.

The biggest difference is their Main Skill, but neither of them is particularly significant (some argue that Cooking Power-Up S is even less important in the early game). You might also want to keep the evolution method in mind: you can get a free Ice Stone pretty early on in the game, making this evolution much quicker to obtain compared to Umbreon.

Sylveon is arguably the strongest option and in general one of the best helpers in the game. Its Main Skill (Energy for Everyone S) can be used on virtually any team in any Research Area, since any team will benefit from regularly being energised. Sylveon competes with Wigglytuff for its Main Skill, so if you already have a good Wigglytuff, you could consider Espeon instead.

Skill Trigger S/M will influence the frequency of the Main Skill. Skill Level Up S/M will influence how many times the skill activates. Both are good, though I often prefer prioritising Skill Trigger S/M (in combination with Main Skill Chance) to maximise the amount of times it triggers in a day.