Sort of related, but my epileptic dog has most of his seizures right as he's waking up. Perhaps he's suddenly losing his "protection" as his short waves are disabling.
There is a very similar syndrome known as SUDEP (or Sudden Unexpected Death in Epilepsy), where often people are found dead, face down in their beds.
It seems to me at least plausible that there are some links between this new discovery, SUDEP, and SUDI/SIDS.