Non-Sticky Bonus

A non-sticky bonus keeps your deposit funds and the bonus funds separated. You play with your own cash first. If you bust before the bonus activates, nothing sticks to you. If you build the balance up and decide to withdraw, you can cash out your deposit without touching the bonus and its wagering requirements.

The opposite is a sticky bonus, where deposit and bonus merge into one balance the moment you opt in. Any withdrawal before clearing wagering forfeits the bonus entirely and sometimes claws back winnings. Non-sticky is the friendlier structure by a wide margin. Fewer casinos offer it because the math is worse for the house, but the ones that do tend to attract serious, higher-volume players who'd reject a sticky offer on principle.