Mattress and Crib Size problem (pics included)!

[firsttimedady]

Hello there!

Me and my husband are very excited for the baby and we just have assembled her crib!
But we are a little bit concerned about the proper mattress size of the crib. We ordered both the crib and the mattress online and when they came up, we noticed that there is a little gap between the mattress and the crib's edges ( around 1 inch on one side and 1 and half inches on the front side). Attached are pictures of the mattress. Do you think this gap is safe for our baby? should we buy a new mattress?

Thanks!

 

[Taurus8484]

If it was me, yes I would buy a new mattress.

 

[Fruitmash]

I would get a new one as well, it's so easy for little ones to get caught in the gaps