N.M.
It's a normal age for nightmares and night terrors (which are very different, night terrors are worse and they are not awake when they are crying). I'd just soothe without a bottle so you don't get into a habit while he's going through a normal developmental phase. My son went through this, it only lasted a few weeks but my dtr had it on and off for a few years. She shared a room with her sister who did not wake up with her crying until she intentionally woke her up. Then we set down ground rules she could not wake her sister when she had a bad dream, she could only come and wake us up...didn't alwaysw work that way but it helped. Good luck!