Your baby isn't yet 8 wks, so I'd not expect him to be sleeping thru the night for a bit. Typical pattern is that puppy will need to potty every 2-3 hrs, so if you are crating, that's on your "dime".
I personally raise my litters in an expen where they also have a potty / pellet pool and crate w/o door initially. That way they can get up, potty, then go back to bed on their own schedule. My keeper stays there after the others leave at 8 wks for my own sanity/ rest until she is old enough to hold her bladder thru the night. I also continue to feed 3- 4 smaller meals per day thru ~12 wks so digestion is enhanced AND w/ this set up, they actually sleep better because tummy is satisfied.
Other than that, all you can really do is make sure water is picked up by ~8pm and play play play til bedtime hoping you've worn them out well. Anne