There is something, it's the same thing that was before your birth, in that sense so you are very much just returning to your natural state: You have been not born for the longest time and you will be dead for the longest time.
In that context this rather short experience of existence is actually the thing that's out of the ordinary, making it that much more valuable.
It feels so normal to sit there on my couch, writing this message from my smartphone.
But in fact life is just a ridiculously short period at the scale of... Of what, actually?
How long have I not been born, and how long will I be dead? Trying to make sense of it is what makes me anxious.
When I read or think of events on cosmological scale it always gives me feelings of curious bliss.
When I look at these things I'm amazed that I'm part of these scales, or as Carl Sagan put it: "We are made of star stuff".
Once I'm dead, the elements my body consists of will go back into that eternal cycle, making me once again a part of the whole or maybe even part of evolving into something completely new.
While my non-corporeal parts, my consciousness, my character, will hopefully be fondly remembered by family and friends.
At least that's how I found a bit of peace of mind after having suffered from anxiety and existential dread for most of my youth.
The idea that being dead is the same as not being born seems like an elegant conclusion until you consider how much our perception of time varies even while we're alive, and it's actually an observation made after you gained your current consciousness; meaning that you truthfully have no idea what happened before you were born, only your current perception of it. What you're really saying is "I don't remember, and no one else remembers, therefore there was nothing".
Reality is unintuitive. Modern theoretical physics suggests that time itself is an illusion and that every state of the universe is superimposed into one unifying entity: past, present, and future. What does that mean about our perceptions of life and death?
The truth is we don't know much of anything, we can only speculate about it.