Unstaking
Bittensor has no unbonding period. When you unstake, the TAO is in your free balance straight away.
On a subnet, unstaking is a trade, so the amount you receive depends on the pool price at that moment and on the size of your position. Quote the exit before you act. The value shown for your stake assumes the current price and ignores the effect of your own sale, so a large exit can return less than that figure.
There are a few exceptions. Stake you have chosen to lock cannot be unstaked below the locked amount. On root, the network can set a short holding period after you claim rewards. And very small amounts below the chain minimum cannot be unstaked on their own, although unstaking everything at once is always allowed.