Toddler sleeping advice needed!!!

Okay moms I have a little boy he turned 3 in February and i have been noticing he hasent been sleeping to well but last night we had really bad weather with tornado warning and stuff going on so I decided to let him and his sister sleep with me witch I never do so I never realized how bad his sleep really was. During the night he would swing his arms and constantly toss and turn and even talked in his sleep but the arm swinging and stuff was horrible! I feel like he isn’t getting the sleep he needs because of it. A couple weeks ago we had a dentist appointment and we found out he was going to need a two part Procedure to fix a tongue tie and the dentist Told us because his tongue cannot reach the top his pallet It can cause a lot of things to happen and one of them is a hard time sleeping but my 5yr old also had a tie that was fixed a couple years ago and I never noticed her having that much trouble during her sleep. So does anyone else’s have a Tongue tied toddler that has trouble sleeping or does anyone have a toddler that does this in their sleep and can give me advice?