How do you say

I bought a sofa with a three-month warranty.

..in Chinese?

我买了一张三个月保质期的沙发。

wǒ mǎi le yī zhāng sān gè yuè bǎo zhì qī de shā fā 。

How do you say "I recently bought a new sofa, which I intend to put in the living room." in Chinese?