Merlin sleep suit

Hey ladies, I'm at my wits end and wondering if anyone has reviews good or bad about the Merlin sleep suit??? My LO is 10 weeks old and she never sleeps more than 3 hours at a time at night. I'm not trying to get 8+ out her or anything, but even a 4 hour stretch would be a welcome break. She is EBF so I know it's normal for her to still wake up but I have to get a little more sleep. We have tried everything I can think of. We swaddle and have tried sleep sacks but she hates them. Most nights I get the most sleep when she is in the rock n play next to my bed but that's not always a guarantee. We have tried mommaroo, snuggle nest, crib and she won't stay in any of them. Co sleeping is not an option because our bed is a pillow top and too fluffy, this is why we originally got the snuggle nest. Any suggestions or reviews for the sleep suit are welcome!