Crib Questions

Ok mydaughter is 3 months and! is getting to big
For the bassinet. So In b in the bassinet I swaddle her but when I'm going to put her in the crib I'm thinking of not swaddling her only because I have a fear that she will roll over and not lift up her head does anyone else fear that or is it only me! 
Does anyone swaddle their kids in the crib? I read a review on one of those sleep sacks in and in the review a parent said that their child suffocated from rolling over and couldn't use their arms