My cockapoo puppy is 17 weeks old and in the last two weeks has stopped sleeping properly and it is really causing us problems. When we first got him he would sleep in his crate with no problems and we would get up one or two times a night because he needed the toilet. After a couple of weeks he started sleeping until about 5:30am and we thought we had cracked it. Last two weeks he has woken us up crying and barking four to five times a night. We go and take him outside for a toilet and he will just sit down. He gets no play and just gets put back after 5 minutes. We've tried leaving him to bark when we knew he didn't need anything but he didn't stop. The noise he makes is the same whiney bark that he does when he gets put in his playpen or we go upstairs (from separation). His schedule is currently waking up at 6, breakfast then a short walk, lunch at 1, dinner at 6, longer walk and then bed at 9:30. Usually in the evening he falls asleep on the floor at around 8:30. Ive seen some recommending feeding his evening meal later because he might be hungry in the night. He's currently being fed to the schedule the breeder gave us and the online advice is feed 3 hours before bed. I'm happy to try changing it at this point if it might help. We can't put his bed in with us - our room is a loft room at the top of a staircase. There's no room around the bed for a crate and no landing outside the door. He is teething at the moment (4 down so far). It doesn't seem to bother him during the day but I suppose could be upsetting him at night. We've left teething toys in with him but it doesn't look like he plays with them at night. Help Edit: we've got an adaptil plug in near his crate and have been trying those Zylkene pills as well.