I’m too SHORT for the Pack and Play

We were planning on using the pac and play as a crib until we’re able to move her to a big kid bed(twin mattress)

I know that pack and play is a safe sleep place. So I’ve been shopping for mattresses to stick in there. She’s only 4 months so I have some time, but she’s starting to outgrow her bassinet.

The problem is— I’m on the shorter side.

I find it very hard to reach all the way down there to be able to put her down. Especially since my belly still hurts from my C-section (I had a very difficult delivery). Pressing up against the bar to lean all the way to the bottom is not only hard- but painful.

My question is: is there anything that I can stick under the mattress to raise her up a bit? To be able to put her down easier?