@Tribe85 whatever your SIL is on, I want some! That's absolutely bananas.
Poodles are so clingy and are prone to SA. I wouldn't really leave a poodle puppy that young in a crate - they can really hurt themselves if they become distressed so enforced time in a crate won't work. If you want to use the crate you have to get her used to being in the crate without the door closed - throw some nice food in there, or a toy, or have her take her meals in there. Or have her sleep in a play pen which is a bit bigger but again keeps her contained.
I have mine sleep on my lap on the floor, in the whelping pen, when they're really young. It's enough space for them to move about a bit and for me to join them so they don't feel abandoned, but small enough they can't run with high enough walls they can't really escape. I would sit on the floor and just soothe them to sleep. If they kept mouthing, just repeatedly said 'no' firmly and pulled them off me. It's a good option if the puppy doesn't like the crate (or use a play-pen which is a far cheaper alternative...).
On the plus side she's a poodle, so she's sharp as a whip. She'll pick it up quickly after a few constant days of consistent routine.
The first 6-10 weeks of puppy ownership are crap though. Really crap. It does get better once they can go out. Try doing some training with her (sit, down, recall, leave, wait, stay etc). Nothing better for making a puppy suddenly conk out that 15 minutes of training! 😊