Is quilted fleecy pack n play sheet safe to use with newborn?

[Tammy]

I've used this with a toddler before and wasn't worried. But it's the Eddie Bauer quilted sheet and it's not as flat as a regular cotton sheet so not sure if I feel comfortable using with 8 week old DD2. And she normally sleeps in her pj's and if I put her sleepsack on she's sweaty. The regular thin sheet just seems so uncomfortable. Thoughts?

[bigpassport]

We used the Eddie Bauer quilted PNP sheet with DS from day 1.

[Claki]

We used it with no qualms from the very beginning. And I was pretty strict about the no soft bedding rule. Ours lied pretty flat.