Yes, sounds like most babies.
And mine when they were babies.
6 months old is a growth-spurt time and a time of many developmental changes. This tweaks them. It affects sleep. And they may be teething at this age too.
And, per my kids as babies and what our Pediatrician said, from about this age, they get 'separation anxiety' too.
Plus, if a baby is hungry, they can't sleep. Feed him on-demand. Not by a 'schedule.' My kids as babies had HUGE appetites, they woke every 2 hours or so. I nursed, They fed, were satisfied after feeding, woke again, grew like weeds, and were very healthy.
Plus, make sure he naps during the day. Lack of sleep/over-tiredness, makes a baby sleep worse, and they wake more.
I would try feeding him, on-demand. Yes, at night. My kids were voracious feeders. At growth-spurts, they need increased intake. For the 1st year of life, breastmilk/Formula is a baby's primary source of nutrition. Not solids and not other liquids.
How IS it at daycare? Do they feed him on-demand? They should. Not by a schedule. Is he getting enough intake, there? I would check on that.
Babies... often go through periods of 'cluster feeding' too. Which means they even need to feed every single hour. Which is normal in a baby and at certain junctures. So if being fed by a 'schedule'... a baby will NOT be getting adequate, intake/feedings. For example.
Don't feed him according to when he ate last. Going by a clock, does not indicate, the feeding needs/hunger of a baby. Nor their growth-spurt needs and intake needs, per their development.
Also, from that age of 6 months, my son had a 'lovey.' Which HE gravitated toward. A stuffed toy. So he slept with that too.
all the best,
Susan