Used to be great, 5 month old won’t let us set him down at night

Looking for advice 😪We have a 5 month old, our first, who we haven’t had many issues with aside from the common things you’d expect. We would feed him till he fell asleep and then lay him down for the night. He’d wake up, we’d feed him, repeat, about 4 times throughout the night.He recently started teething, and now when it’s time for bed, we’ll feed him, he’ll fall asleep in our arms, and the second we lay him down he wakes up fussing. Every single time, all hours of the night. He could be dead asleep in our arms for 3 minutes or 30 minutes and both are the exact same outcome. The second he hits his bed he starts dramatically fussing and doesn’t stop until we get him to sleep again either by singing and rocking or by feeding.If it helps, he is 100% breastfed and sleeps in a co-sleeping bassinet situation in our bed.Any recommendations?? Pleaseeeeee? This mama and daddy desperately need some sleep 😩 thanks in advance via /r/Parenting https://ift.tt/3gw9st4