I also use this exact puppy product since bringing him (11 week old pup) home. We used on our long ride home when we got him at 8 weeks of age. He sleeps right next to our bed and only uses at night.
We used the phrase “head to bed” and toss one very small treat into the covered crate. He did whine a bit the first few nights but now he sleeps through the night. Wishing you success.