The Corpse mod gives the player a little extra reassurance when playing on survival. If you should die in the game, your body will remain at the spot holding all of your inventory safely. All you need is to get back to it before someone else does and claim your loot!
And you can even verify that all your items are still there with the secondary menu.
But fear not as it won’t de-spawn until all of the items are removed but after 1 hour it will turn into a skeleton in place of your body. Fortunately it won’t attack you and you can still claim your items.