Hoping for some kind advice. We have a 3 month old GR puppy. He's crated at night and happily goes to bed about 10.30 after a toilet break. He then wakes at about two am for the toilet but goes back in the crate happily. He wakes at 5am and after a wee will not go back in the crate but does sleep as long as one of us is downstairs with him. Otherwise he barks and cries so no one gets any sleep. He has two fifteen minute lead walks in the day, zoomed in the garden and lots of playtime as one of us works part time and we both work from home. He does puppy play twice a week and puppy school once a week plus has the chance to meet other dogs on the lead in our neighbourhood. So I think he's tired enough. We don't use the crate during the day but at night we can't really trust him not to chew something he shouldn't.
We're suffering from broken nights and early mornings so any advice gratefully received. He is not our first dog (he is currently our only dog) but it's some years since we raised a puppy.