Sarah - I think one of the big concerns with Bumpers and SIDS is the baby wriggling/rolling into a position that has them against the bumper that they can't get out of and causing self suffocation. Which means that tying the bumper so it can't come down may not be a solution.

The idea with bumpers, pillows, doona's etc is for them to be avoided until baby is able to get themselves out of trouble they find themselves in when rolling over etc.

TG - I'd avoid the bumper hon. As nice as they look! I've got my eye on one for when I'm ready to put one in!

Love MG