A Campbell's dwarf hamster's enclosure works best when it is arranged as a small landscape with distinct zones rather than as a box of equipment placed wherever it fits. Start with deep bedding across the entire floor, then place the nest, wheel, bath, and feeding points so a Campbell's can move through a natural circuit without everything competing for the same corner.
The quiet end: burrow, nest, and the main hide
Give the Campbell's dwarf hamster one end of the enclosure as its sleeping quarter, with the deepest bedding piled there and a solid wooden or ceramic hide set over it. Most Campbell's hamsters dig down beside or beneath the hide and build the real nest underground, lining a chamber with the nesting material you scatter nearby. Keep this end away from the wheel's noise and from the side of the enclosure nearest room traffic, because dwarf hamsters sleep through the day and startle easily. Add a second, smaller hide partway down the enclosure as a daytime bolt-hole, but let the main burrow corner stay undisturbed during cleaning; spot-clean around it and only excavate it when it is genuinely soiled, since destroying the nest weekly is a major stress for a burrowing animal.
The active middle: wheel, sand bath, and tunnels
Place the wheel in the middle stretch of the Campbell's enclosure, on a firm area of bedding or a flat platform so it does not rock or sink as the hamster runs. Beside it, set a sand bath in a dish or low container wide enough for full rolling, filled with hamster-safe bathing sand; Campbell's hamsters use sand both for coat care and as a favoured toilet, so expect to sift it often. Thread tunnels, cork rounds, bendy bridges, and chew sticks through the middle ground to make a loose obstacle course between the nest and the feeding end.
Feeding the floor, not just the bowl
Feeding stations for a Campbell's dwarf hamster should be partly invisible: scatter the main seed mix through the bedding in the open half of the enclosure so the hamster spends its evening foraging as it would naturally. Keep one small bowl in a fixed place for fresh food pieces and for monitoring appetite, and fix the water bottle or a stable water dish beside it, where drips will not soak the nest. Because Campbell's hamsters hoard, check the burrow corner every few days for stored fresh food that has gone soft, and remove perishables while leaving dry hoarded seed alone, since the hoard itself is part of the hamster's sense of security.
Floor texture, digging extras, and safe clutter
Vary the Campbell's enclosure floor with textures beyond the main bedding: a patch of hay to tunnel through, a coconut-fibre digging dig box at the feeding end, and a flat stone or tile under the water point where nails get a little natural wear. Keep anything heavy on the enclosure floor itself rather than balanced on bedding, because a digging hamster undermines objects and a falling hide or dish can trap it.
A layout that stays settled between cleans
The best Campbell's dwarf hamster layout barely changes shape from week to week: nest end, active middle, feeding end, with new enrichment swapped into the same zones. That stability lets you read behaviour accurately, because a hamster that stops visiting the wheel zone or starts sleeping in the sand bath is telling you something has changed at home or in its health.
A shared sketch of the zones in KinsLe, kept current through Family Sharing, means every family member who spot-cleans or feeds this Campbell's rebuilds the same familiar landscape.