I suggest changing mattresses. I find cooler mattresses help with sleep especially during the day. Purple mattress is pretty good. It’s breathable and comfy and you can definitely feel the cozy texture.
Aww poor baby. Maybe because this side is designed for a firmer feel for your kid between ages 3-7 since they’re developing children. This mattress is a flippable design. The other side has a plush feel for tweens. You can flip it once she reaches that age but for now, you can add a pad on top...
I recommend checking out Tempur-pedic. It’s one of those “worth every penny” purchases. Super comfortable, great for back pain relief and built to last.