Chinchou

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.

Time and weather are not recorded for this one — the source does not yet cover the Expansion Pass and event Pokémon.

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 Lots of water

30+ items

Resort hammockTable settingPaper Party cupsSoda floatShaved iceModern sinkToiletSinkBathtime setCleaning suppliesShowerBathtubBouncy blue bathtubHumidifierFunky diffuserWater basinCanoeInflatable boatBeach parasolHorsea fountainFire hydrantSprinklerMystic WaterWater pillar quarterHoppip water bottleJuice trioTeaware setBottled shipGyarados fountainBubble machine

2 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

3 Wobbly stuff

20+ items

Folding chairResort hammockKnitting suppliesBalloonsPunching gameWobbuffet WobblerHanging bannerBerry wall decorationPunching bagBellFishing rodSilk ScarfLagging TailInflatable SudowoodoMoon clockMetronomeChimecho wind chimeHanging signChain lampBeach volleyball set

4 Glass stuff

97+ items

Sea glass fragmentsGlassGaming fridgeOffice shelfIron standWall mirrorLarge mirrorAntique dresserLuxury dresserCute dresserWiggly mirrorPhoto frameDining cabinetMicrowave ovenPrinterWashing machineTabletCell phoneLaptopComputerGaming PCTelevisionWall monitorArcade machineAlarm ClockGame Boy systemHumidifierCrystal ballMicroscopeScience experimentAudio mixerSpacesuitSpaceshipAntique clockBerry clockGrubby tabletGrubby cell phoneVending machineRaichu signMini generatorCard readerTown streetlightHarbor streetlightChic streetlightDouble streetlightPlain lampDesk lightPoké Ball lightBerry table lampCute lampPoké Ball lampRed meteor lampOrange meteor lampYellow meteor lampGreen meteor lampBlue meteor lampIndigo meteor lampViolet meteor lampLuxury lampGarden lightLanternSeedot LampMirror ballWall lightShell lampFluorescent lightGaming lightString lightsPop art lampBerry hanging lampSurface lightSpotlightAntique chandelierClear AmuletModern doorGlass windowWindow paneStained-glass window (upper)Stained-glass window (middle)Stained-glass window (lower)Sash windowWater pillar quarterJuice trioDigital cameraOil lanternStar-shaped DresserTelescopeStar wall decorationJirachi lampMarine dresserShop display caseShop fridgeBottled shipWall clockChimecho wind chimeBlenderChain lamp

5 Shiny stuff

77+ items

Crystal fragmentStardustGaming fridgeGaming chairGaming bedMunna bankBathtime setCleaning suppliesTabletCell phoneLaptopComputerGaming PCTelevisionWall monitorCrystal ballTabletop micStanding micGold TeethBig NuggetAuspicious ArmorClear BellGym emblem statueSpacesuitModel space shuttleBellSignpostInformation boardRaichu signFire hydrantMini generatorMushroom streetlightChic streetlightPoké Ball lightPoké Ball lampRed meteor lampOrange meteor lampYellow meteor lampGreen meteor lampBlue meteor lampIndigo meteor lampViolet meteor lampMirror ballFluorescent lightGaming lightString lightsMusic mat (low do)Music mat (Re)Music mat (Mi)Music mat (Fa)Music mat (Sol)Music mat (La)Music mat (Ti)Music mat (High do)Star PieceNuggetSilver Bottle CapGold Bottle CapMetal PowderClear AmuletRainbow FeatherSilver FeatherRed crystal fragmentDigital cameraStar closetStarry-sky bedStar-shaped DresserStar wall decorationJirachi lampMarine chestMarine closetOrnate decorative shelfSparkling jewelryDangling streetlightCursola lightDecorative clothPrism scale

Flavour: dry

8 foods

Chesto BerryWheatCave mushroomsCrushed-berry saladMushroom soupMushroom hamburger steakRoserade TeaSea grape 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.