The Janet scratching tree by Petfun is a very good choice if you have more than one cat.
They don't need to fight about a hammock because Janet has already three. And nevertheless also a cave and a bordered plate! The tree is ceiling mounted and Petfun adjusting it especially for your height. So it fits also for the highest ceilings. The cave has cosy carpet inside and outside. If you want to make it more resistant for the claws order the cave and the bordered plate in sisal at the outside.
The cat tree is available with 12cm and 14cm poles and the hammocks could be choosen in cotton (natural white) or micro (dark grey, grey, brown, dark blue, sable and white). They are washable up to 60° and could also go in the dryer.
And the wood is also possible waxed or oiled (transparent, nut or chestnut)
product description: 3 x hammock - round bordered plate - cave bottom plate: 60 x 60 cm birch multiplex length of the poles: 110 – 90 -3 x 40 cm + ceiling pole height: up to your ceiling