Mimikyu

A habitat matching this ambience raises Comfy Level faster. Time and weather gate whether a Pokémon turns up at a habitat at all — though light overrides the clock: a night Pokémon spawns at any hour if its habitat sits somewhere dark such as a cave or underground, and a day Pokémon spawns at night if its habitat is ringed with light.

Give or place anything matching these and both friendship and Comfy Level rise much faster — a matching item lays down with a bigger sparkle. For a Pokémon with the Trade specialty, matching items are also worth 50% more on the scale.

1 Spooky stuff

16+ items

Armor fragmentLuxury chairPitcher-plant potTwisted potted plantMunna bankBoo-in-the-boxMalicious ArmorMysterious statueSlender candleEerie candleGravestoneMushroom streetlightChic streetlightSpell TagAdrenaline OrbCursola light

2 Cute stuff

80+ items

Poké Ball ChestBerry casePolygonal ShelfCute tablePop art tableBerry chairStylish stoolCute chairPop art chairCute sofaPop art sofaPikachu sofaPop art bedBerry bedCute bedNaptime bedCute dresserWiggly mirrorRibbon cakeMunna bankBathtime setBouncy blue bathtubBoo-in-the-boxWobbuffet WobblerBerry clockRowlet clockCastform weather charmEevee dollPikachu dollClefairy dollArcanine dollDragonite dollDitto dollSubstitute dollEerie candleChansey plantInflatable boatPhoto cutout boardBerry table lampCute lampModel planetRed meteor lampOrange meteor lampYellow meteor lampGreen meteor lampBlue meteor lampIndigo meteor lampViolet meteor lampLuxury lampSeedot LampShell lampBerry hanging lampCute flowerHeart ScaleFairy FeatherFlower cushionFlowery table settingLunch boxHoppip water bottleFlower garlandFlower backpackStar closetStarry-sky bedStar-shaped DresserMoon clockStar wall decorationJirachi lampSeashell seatMarine sofaCushion bedDecorative platesWindup InkayChimecho wind chimeRunning shoesStarmie dollPrimarina statueCycle shop signCafé signGift shop signCursola light

3 Electronics

89+ items

Gaming fridgeGaming chairGaming bedMicrowave ovenRefrigeratorFanAir conditionerPrinterWashing machineToiletTabletCell phoneLaptopComputerGaming PCTelevisionWall monitorArcade machineGame Boy systemHumidifierJumbled cordsCD playerTabletop micStanding micCool electric guitarCool bass guitarAudio mixerSpeakerPunching gameControl unitCeiling fanRaichu signLarge ventilation fanUtility poleWireless power-transmitter switchWireless power transmitterMini generatorFloor switchWall switchCard readerLaser sensorSecurity cameraTown streetlightHarbor streetlightChic streetlightDouble streetlightMushroom lampPlain lampDesk lightPoké Ball lightBerry table lampCute lampPoké Ball lampModel planetRed meteor lampOrange meteor lampYellow meteor lampGreen meteor lampBlue meteor lampIndigo meteor lampViolet meteor lampLuxury lampGarden lightLanternSeedot LampMirror ballWall lightShell lampFluorescent lightGaming lightResort lightString lightsPop art lampBerry hanging lampSurface lightSpotlightAntique chandelierJirachi lampShop fridgeServersCycle shop signSupermarket signCafé signRestaurant signGift shop signBubble machineDangling streetlightChain lampFloating lantern

4 Fabric

85+ items

FluffPlain chestPlain closetPlain standSimple cushionPlain stoolResort stoolStylish stoolSoft seatBox SofaPlain chairResort chairChic chairFancy chairAntique chairLuxury chairFolding chairOffice chairCute chairPop art chairGaming chairPlain sofaResort sofaChic sofaAntique sofaLuxury sofaCute sofaPop art sofaPikachu sofaLog BedMini plain bedResort bedIron bedBeach chairPop art bedPoké Ball bedBerry bedPlain bedResort hammockGuest-room bedAntique bedIndustrial bedCute bedNaptime bedPicnic basketTable settingTowel rackKnitting suppliesCrystal ballBig drumHanging bannerParty buntingCastform weather charmEevee dollPikachu dollClefairy dollArcanine dollDragonite dollDitto dollSubstitute dollPunching bagBlank canvasPainting (landscape)Painting (portrait)Painting (still life)Beach parasolSandbagsPlain lampLuxury lampResort lightRoom ServiceFlower backpackCamping chairSleeping bagAdventure kitStarry-sky bedSeashell seatOrnate chairMarine sofaOrnate bedCushion bedRunning shoesStarmie dollDecorative clothSand bed

5 Group activities

Flavour: bitter

11 foods

Rawst BerryPotatoSeaweedSeaweed saladSeaweed soupRecycled breadBitter hamburger steakSea grapesPopping saladPopping soupCoffee parfait smoothie

Two caveats. The game lists these five in a fixed order, but no source says the first counts for more than the fifth — the numbers are the in-game order, not a strength ranking. And the item lists are incomplete: Serebii marks them as still being filled in, so each count is a floor, not a total.