new Galaxy watch 3 - did not record sleep correctly

[Tomster88]

So I finally got my new Galaxy watch 3. I decided to let it track my sleep last night. But it didn't do it correctly. I fell asleep around 11:30 p.m. but the watch says I didn't sleep till around 1:30 a.m. I went online and there are other people experiencing the same problem. Anyone know of a way to fix this?