Put the gecko back into its own world, unchanged
Crested geckos navigate by memory and scent, and boarding scrambles both. If the enclosure travelled with your gecko, resist the urge to deep-clean and redecorate on its return; familiar foliage carrying its own scent is a settling aid, not a hygiene failure, so spot-clean only and keep the hide, branches, and food ledge where they always sit. If it boarded in a temporary tub, return it to its real enclosure promptly, set the enclosure in its usual room, and check that the temperature sits in its normal gentle range before the gecko goes back in. Then step back and let the animal rediscover an unchanged map.
The first evening runs on mist and darkness
Time the homecoming for late afternoon if you can, so the gecko gets a normal dusk in its own home. Mist the enclosure generously as evening falls; a boarded gecko is often mildly dehydrated, and lapping droplets from its familiar leaves is both drinking and reassurance. Set out fresh powdered diet on the usual ledge that first night even if you suspect it will not eat yet, and keep the room dim, quiet, and free of handling for the first two or three nights. Peeking with a torch every hour undoes the darkness this nocturnal animal is using to feel safe again.
Signs of settling, and a weigh-in when calm
A crested gecko settling well resumes its rounds: found in a normal sleeping spot by day, food licked by morning, droppings appearing on leaves and glass, and movement at night back to its unhurried rhythm. Expect the first night or two to be unusually still, or occasionally unusually restless, as it re-marks its territory. Once it is calm, weigh it and compare with the weight recorded before the trip; holding steady is the clearest proof the stay went well, and a real drop reframes quiet behavior as something to investigate rather than simply wait out.
Trouble that should not be waited out
Contact a reptile vet if your gecko has not touched food after the better part of a week at home, if shed is stuck fast around the toes or tail tip, or if droppings remain runny once the routine is restored. A gecko that sits fluffed and still in the open, breathes with visible effort, or feels limp and cool when it must be moved needs prompt attention. Ask whoever boarded it how often it was misted and fed and whether it ate at all; a gecko that fasted through its stay may simply be restarting slowly, but one that lost weight and shed badly was telling a story the notes should confirm.
Turn this homecoming into a better brief
Write down how long settling took, what the weight comparison showed, and anything the sitter reported about feeding and misting, while the details are fresh. Adjust the next handoff accordingly: the exact diet flavor it eats, the ledge position, the misting rhythm it expects, and a request that the sitter log meals rather than report from memory. Storing that log against your gecko's profile in KinsLe's Care Pass means the next boarding stay starts from a written routine your gecko already proved it can thrive on.