Custom sleep timer in apple podcast app

Why does Apple not offer custom sleep timer in the Apple podcast app. The spread between 15 and 30 minute time is too big. I want to be able to manually choose the timer i want, like i can in other similar apps. I know about the “stop playing” function in the clock app but I dont want to use the clock app and use stop playing on timer. I want the option integrated into the podcast app. Hope this reaches to Apple developers.😀