Too much of sleep 👶

Suganya

Hello mommies !!!

My baby gal is 3 months old and suddenly I feel that's she sleeps a lot more then usual and puts all her fingers in the mouth till her throat and sometimes she spits out curdled milk while doing that .. otherwise she s active and normal when she is awake . And started to talk n smile a lot

But am so much worried about her sleep is it normal or there could be any problem or just growth spurt ????