An indoor Maine Coon needs opportunities to climb, scratch, rest and retreat, but these do not have to come from one particular style of cat tree. A suitable tree can combine several functions in a practical place, especially when ordinary furniture does not offer safe or comfortable alternatives. Choose it for the cat's actual size and habits rather than assuming that the tallest model provides the most useful enrichment.
A large open bed, accessible intermediate platforms and a worthwhile scratching area may matter more than decorative extras. In a smaller home, a lower climbing structure alongside separate scratching and resting options can serve similar purposes. Furniture also does not replace interactive play or a varied daily routine. Observe what your cat uses, make adjustments where access is awkward, and keep opportunities available at different heights so climbing remains a choice rather than a requirement for comfort.
List which functions your current room already provides comfortably. If the missing function is upright scratching, a suitable separate scratcher may be the priority; if there is no elevated resting choice, a usable platform may add more value.
For product comparisons alongside this advice, see Ultimate PawHouse and Taj-MeowHall. The details below explain their sizes and uses.
Further reading: cats.org.uk; rspca.org.uk.
Ultimate PawHouse
Taj-MeowHall
Cat-Cave