Can you Unstake SOL at any time?

Good day, fellow crypto enthusiast. I have a question regarding the staking of SOL tokens. I've been considering staking my SOL for some time now, but I'm wondering about the flexibility of the process. Specifically, I'm curious to know if I can Unstake SOL at any given time, or if there are certain conditions or restrictions that I should be aware of. Understanding this aspect of staking is crucial for me to make an informed decision. Could you please elaborate on this matter and provide any insights you may have? I appreciate your time and assistance in this matter.