It's unlikely that this would matter to most people, but leaving the computer sleeping rather than hibernated or shutdown partially defeats any full disk encryption. Recovering keys from RAM is possible for a short period of time after power is removed. [1] Microsoft suggests disabling sleep when using bitlocker encryption. [2] And it is similarly suggested that Ubuntu use suspend-to-disk (hibernate) rather than suspend-to-RAM (sleep) when utilizing full disk encryption. [3] For better security leave the computer shutdown when not using it.

1. https://en.wikipedia.org/wiki/Cold_boot_attack 2.https://docs.microsoft.com/en-us/previous-versions/windows/i... 3. https://security.stackexchange.com/questions/208921/is-suspe...