While playing in a survival world, I went to bed and the blocks behind me, while I was standing, did not render when I entered the bed (see attachments). I tried to replicate this in another world but the same error did not occur. I was able to replicate this error in the same world, however.

To replicate this, I have a double green bed surrounded by stone slabs, and the stone slabs are surrounded by carpet. While standing 1-2 blocks away from the bed, and on the carpet, I right clicked on the bed to sleep and the blocks that were behind me did not render. If I were to stand on the bed, face the other way, and look down and sleep, the bug is not present.