My cat loves this hammock, it never left him to sleep! However beware, the fixing system does not adapt to all the radiators, is a system equivalent to that of planters that one clings to the balcony. The fabric is very soft and machine washable as it withdraws from the metal support. Bottom hardness does not pose a problem because as the name suggests it is a hammock so there is no bottom! The product delivers on our radiator which is narrow and rather standard, it is still not great but adapted it holds. I recommend this product provided that adapts to your radiator! Delivery: RAS Packing: RAS