Anything you can suggest for me?

My home has no carpet its all hard floor. Most of the times I'll do tummy time on my bed or she will be on her baby cushion. Always supervised of course. I wanna be able to lay her down on the floor but its to cold I put a baby blanket but it doesn't work cause she always end up grabing the blanket and it goes everywhere. She needs more practice especially so she can start to roll now. Shes around 4mo+

Thanks