I have heard it can take about 3 days of hard times to give it up.

If you find it too hard to take it away you could try putting 2 or 3 dummies in the cot for bub's easy access?

DD still has hers and she's 2.5. We're aiming for her 3rd b'day for her to give it up! We did go through a stage where she would lose it a bit at night, but after we put a couple in her cot with her it got better, I think?