Short naps and trouble getting to sleep

Almost 5months. Naps have always felt short, but are getting even shorter (20-30min). Sometimes he can get more sleep from feeding and a contact nap.

He also used to go down pretty seamlessly right around 7:30 and sleep until at least 4 before waking. But now it’s a bedtime struggle and he wakes up screaming and hungry around 9:30 or 10pm. Then wakes up a few more times overnight. We always feed him, cuddle, then back in the SNOO.

Any thoughts, on naps in particular? The SNOO doesn’t seem to help at all for naps, and only occasionally for an overnight wake-up. We’re doing the batwing bc otherwise he gets his arm out through the neck hole and it wakes him up. One arm out failed—he just wouldn’t sleep at all.

EDIT. Added age and some details bc I meant to add a snoo screenshot but I guess I can’t add retroactively.