It a tough one isn't it!? Since Izzy has started rolling she prefers to sleep on either her side or tummy, no matter what we do she simply kicks her covers off and over she goes. I've decided that seeing as she is strong enough to roll and hold her head up she can lift it to the side. Now that it's summer too I have been just using a sleeping bag and nothing else for her too -on the odd night that its cool I tuck her in tightly with her blankets over her bag and she stays on her side.

Not sure there is much you can do hun - but like I said, if she is strong enough to roll then she is strong enough to hold her head over to the side. I would think the anti-roll thing is just bothering her and probably more of a hazard than a help if she is getting around it so I wouldn't use it. JMO!