There is a lot of conflicts sadly between Evangelical Christians vs Seven-Day Adventists between this question so here it is:
Do we immediately go to heaven after we die or have a sleeping period before we are resurrected during the rapture?
I personally believe that we immediately go to heaven because of what Paul says, and to say that Paul is wrong is like saying that half of the New Testament is wrong. Usually, the Seven-Day Adventists would go to the verses or chapters in Revelation 20 and ask what it means about the first and second resurrection, but personally, I believe that after our body dies physically, but our spirit goes to heaven, and when since our body is “asleep”, it will be resurrected into a glorified body when the first resurrection happens. Feel free to correct me, but I feel like it’s like when Jesus died physically, but his spirit conquered the grave thus giving himself a new resurrected glorified body.