My 13week old baby is bottle and eating more than usual, teething but still not sleeping through the night- is it s growth spurt?

Sleep consolidation : Occurs between 1-4 mos. If you have a consistent bedtime & routine: in low light, read, feed, then wipe out his mouth with a soft cloth after last feed & put him on his back in his crib in his room, drowsy, but awake, to learn to self-calm to fall asleep. Wait 5 min. Before going in if he night-wakes. Hope for 6 hrs. Sleep @ 4 mos. & 11 pm-6 am by 5 mos. & avoid trained night-crying @ 6 mos.

Most likely: Most infants that young don't sleep through the night, it's perfectly normal. As far as the eating goes babies will eat more as they are growing so i would have to agree with you that growth is occurring although not sure it's a spurt.