I really DETEST zippered things for K, at least so far. Maybe because she's still small? Zippered sleepers, zippered swaddles, and now the sleep sacks... they ALL bunch up around her chin!
Because she is waking up at least 1x every night just to get her arms free, we've been trying to swaddle wean the past few nights and use sleep sacks. The other night when I picked her up, the sleep sack was completely soaked all around the neck/chin area. We've tried several different sleep sacks and they all do the same thing! I tug at the bottom when she's laid down, to try and keep the neck opening away from her chin, but it always eventually bunches up. Same thing with zippered sleepers.

Anyone else have this problem? Is there a solution besides waiting for her to grow longer and have more neck strength?