Why have i lost my love for life?

I dont feel depressed at all, I dont feel great, but rather ok. im just not sure why i am this way. Im in my early 20's and have no motivation for anything. Nothing excites me. I kind of feel like I am ok with just sleeping for the rest of my life, which in turn makes me not care about dying. I dont want to kill myself or anything I just feel like Im ready for it and dont fear it. I almost feel like I am bombarded with extreme laziness at times, but its not that I am lazy, I just dont care enough about anything to get out of bed. How can I overcome this?